Difference between revisions of "RyonaRPG/Parasites"

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{{RyonaRPG}}
 
{{RyonaRPG}}
These items (with the exception of the Beast's Egg) are impossible to remove without help and will infest your character, continuously H-attacking them. They can be useful if you want to increase your character's sensitivity or gain [[RyonaRPG/Abilities#H abilities|H abilities]].
+
'''Parasites''' are living pieces of equipment that can attach themselves to the player through traps, enemies and scripted events. Most cannot be unequipped normally. Each one occupies a real equipment slot, changes the wearer's stats and may trigger its own periodic events.
  
* Other than the Riverblossom Slime, they can be bought from the accessory merchant in RAYON if you are a [[RyonaRPG/Slave_mode|slave]], dog, cat or wearing the Ears and Tail Set item obtainable from the consumable merchant.
+
There are several related systems which should not be confused with one another:
* Parasites can also be obtained by walking into eggs on the ground (present in the Bug Labyrinth and Ghestahl Sorcery Ruins), as part of the attack of some enemies (e.g. Boss in Ghestahl Sorcery Ruins) and from opening trapped chests (some are present in the Demon Castle Goddamned). Lastly, if a full slave talks to the little girl in RAYON, they will gain a random parasite.
 
* The Riverblossom Slime can be aquired by destroying a green slime or other slime-based enemy with a melee attack (e.g. some mimics, some slimes such as the blue ones in the Magician's Retreat). Note that if you are immune to slime, such as via a ribbon or purifying ankh, this will not happen.
 
* Slimes and parasites won't be force equipped through these events if your character is wearing the Invasion Insect or Rubber Biosuit.
 
  
{| class="sortable wikitable"
+
* the eight '''standard parasites''';
!Name
+
* four rare living armors produced by the same infestation routine;
!width="5" | Slot
+
* the separate, evolving '''Invasive Parasite''';
!width="10"| Price
+
* slime, rubber-suit and other living-equipment systems.
! Attack
+
 
! Effects
+
__TOC__
 +
 
 +
== Quick survival guide ==
 +
 
 +
* Carry a '''Dewormer''' before exploring parasite-heavy areas. One is found in the [[RyonaRPG/Locations/Poison-Insect Labyrinth|Poison-Insect Labyrinth]] shelter and another in the [[RyonaRPG/Locations/Abandoned Factory|Abandoned Factory]] passage and elevator area.
 +
* Keep equipment slots open only if you are willing to risk an infestation. An ordinary parasite must have a compatible free slot in order to attach.
 +
* '''Bio-Rubber Suit''', '''Invasive Rubber Suit''' and '''Assimilation Rubber Suit''' protect against the ordinary infestation routine while their protection is active.
 +
* A '''Dewormer''' removes standard parasites only. It does not remove the Invasive Parasite, rare parasite armor or slime equipment.
 +
* Save before accepting an unknown living product or deliberately advancing the Invasive Parasite. Its later stages interfere with removal.
 +
 
 +
== How ordinary infestation works ==
 +
 
 +
Most parasite eggs, insects and suspicious objects call one shared infestation routine. It chooses either one of the eight standard parasites or, rarely, one of four living armors. The selected result is then forced into its normal equipment slot.
 +
 
 +
The attempt can fail when:
 +
 
 +
* the required slot is already occupied;
 +
* sufficiently cursed equipment occupies or protects the required body site;
 +
* a metal chastity belt blocks the selected parasite;
 +
* rubber-suit protection is active.
 +
 
 +
Some characters or forms can tame the creature instead. In that case, the selected parasite or living armor is added to the inventory rather than attached. The exact result is still random.
 +
 
 +
This shared routine does '''not''' produce the Invasive Parasite, Demon-Flower River Slime, Egg of Beast or the other separate systems listed later on this page.
 +
 
 +
If a parasite is obtained as an inventory item instead, equipping it manually activates the same equipment and periodic-event logic. This can happen when a compatible character tames an infestation result or when an event awards living equipment directly. Check the removal method before equipping one merely to inspect it.
 +
 
 +
== Where infestation can happen ==
 +
 
 +
The table lists every current non-debug location group with a verified parasite attachment event. Individual eggs and enemies are often spread over several rooms within the same location.
 +
 
 +
{| class="wikitable sortable"
 +
! Location
 +
! Trigger
 +
! Possible result
 +
! Notes
 +
|-
 +
| [[RyonaRPG/Locations/Poison-Insect Labyrinth|Poison-Insect Labyrinth]]
 +
| Walk-on insect and egg events throughout the Swarm routes
 +
| Standard parasite or rare parasite armor
 +
| One of the main sources. A fixed Dewormer bottle is available in the shelter.
 +
|-
 +
| [[RyonaRPG/Locations/Gestahl Sorcery Ruins|Gestahl Sorcery Ruins]]
 +
| Eggs and enemy events throughout the ruins
 +
| Standard parasite or rare parasite armor
 +
| The Arachne area contains the greatest concentration.
 +
|-
 +
| [[RyonaRPG/Locations/Demon Castle Gaddem|Demon Castle Gaddem]]
 +
| Trapped objects and chests in the left and right storage areas
 +
| Standard parasite or rare parasite armor
 +
| These are traps, not ordinary treasure rewards.
 +
|-
 +
| [[RyonaRPG/Locations/Suspicious Temple|Suspicious Temple]]
 +
| Suspicious objects and piggy banks in the middle areas
 +
| Standard parasite or rare parasite armor
 +
| The event text changes with the object, but both use the same resolver.
 +
|-
 +
| [[RyonaRPG/Locations/Life Sciences Research Institute|Life Sciences Research Institute]]
 +
| Insect events in the underground entrance branch
 +
| Standard parasite or rare parasite armor
 +
| Other Institute routes use separate rubber-suit and hidden-infection systems.
 +
|-
 +
| [[RyonaRPG/Locations/Norsley Sea of Decay|Norsley Sea of Decay]]
 +
| Enemies and hazards in the passages, flower fields, midpoint, Demon-Flower River and branch areas
 +
| Standard/rare random result, or a fixed Slime-Mold Parasite
 +
| Slime-Mold Parasite is especially common here.
 +
|-
 +
| [[RyonaRPG/Locations/Abandoned Factory|Abandoned Factory]]
 +
| Sewer enemies and B2F hazards
 +
| Standard/rare random result, Catheter-Type Parasite or Slime-Mold Parasite
 +
| B1F enemies directly apply Slime-Mold Parasite. B2F includes both random and fixed infections. A Dewormer bottle is available in the passage and elevator area.
 +
|-
 +
| [[RyonaRPG/Locations/Writhing Cave|Writhing Cave]]
 +
| Larvae on the A route
 +
| Sea Anemone?
 +
| This is a fixed infection rather than a random parasite egg.
 +
|-
 +
| [[RyonaRPG/Locations/Mountain Cave|Mountain Cave]], Monster-Flower River
 +
| Monster-flower enemies and hazards
 +
| Catheter-Type Parasite and Cordlike Parasite
 +
| These events can attach both fixed parasite types.
 +
|-
 +
| [[RyonaRPG/Locations/Suburban Treasury|Suburban Treasury]]
 +
| Insect events on B2F
 +
| Standard parasite or rare parasite armor
 +
| A smaller source not listed on the old parasite guide.
 +
|-
 +
| [[RyonaRPG/Locations/RAYON Village|RAYON Village]]
 +
| The little girl's special dialogue while the player is in certain slave or dog-like states
 +
| Standard parasite or rare parasite armor
 +
| She attaches a random result through the shared routine; the village accessory shop does not sell the parasite set.
 +
|-
 +
| Mountain Cave, Lamia ending
 +
| Ending event
 +
| Flesh Rope
 +
| The ending directly equips the item.
 +
|}
 +
 
 +
Additional scripted scenes can force a specific parasite without using the random routine. These include some transformation or outfit events; the Drea○ Club waiting-room sequence, for example, can use Flesh Rope or the Invasive Parasite as scene equipment. Such scenes are not reliable farming methods.
 +
 
 +
== Standard parasites ==
 +
 
 +
All eight standard parasites reduce Attack and Magic by 20. Most also reduce Agility by 20; Catheter-Type Parasite and Slime-Mold Parasite reduce Defense by 20 as well. Their periodic effects come from event code, so the database description alone does not show everything they do.
 +
 
 +
{| class="wikitable sortable"
 +
! ID
 +
! Parasite
 +
! Slot
 +
! Stat changes
 +
! Ongoing behavior and fixed sources
 +
|-
 +
| 0611
 +
| '''Ciliated Parasite'''
 +
| Armor
 +
| ATK -20, MAG -20, AGI -20
 +
| Periodically attacks the chest. Its longer sequence can cause lactation and further breast-related changes.
 +
|-
 +
| 0612
 +
| '''Tubed Parasite'''
 +
| Accessory
 +
| ATK -20, MAG -20, AGI -20
 +
| Periodically drains bodily fluids. Its result varies with the wearer's current anatomy and body state.
 +
|-
 +
| 0613
 +
| '''Sea Anemone?'''
 +
| Armor
 +
| ATK -20, MAG -20, AGI -20
 +
| A two-tentacled body parasite with periodic attacks. Writhing Cave larvae apply it directly.
 +
|-
 +
| 0614
 +
| '''Cordlike Parasite'''
 +
| Weapon
 +
| ATK -20, MAG -20, AGI -20
 +
| Replaces the weapon and coils around the body. Monster-Flower River can apply it together with a Catheter-Type Parasite.
 +
|-
 +
| 0615
 +
| '''Swarm of Leech Parasites'''
 +
| Head
 +
| ATK -20, MAG -20, AGI -20
 +
| Periodically attacks sensitive areas. Its extended event chain can cause a permanent body change.
 +
|-
 +
| 0616
 +
| '''Flesh Rope'''
 +
| Armor
 +
| ATK -20, MAG -20, AGI -20
 +
| Wraps and stimulates the body. It is also attached directly by the Lamia ending and some scripted outfit events.
 +
|-
 +
| 0617
 +
| '''Catheter-Type Parasite'''
 +
| Accessory
 +
| ATK -20, DEF -20, MAG -20, AGI -20
 +
| A urethral parasite with periodic stimulation and urination-related effects. It has fixed sources in Monster-Flower River and the Abandoned Factory.
 +
|-
 +
| 0618
 +
| '''Slime-Mold Parasite'''
 +
| Head
 +
| ATK -20, DEF -20, MAG -20, AGI -20
 +
| An intestinal parasite which can multiply through its periodic sequence. Norsley Sea of Decay and the Abandoned Factory have many fixed infection events.
 +
|}
 +
 
 +
The numbers stored as item prices are not proof that a shop sells these parasites. No normal shop in the current game sells items 0611-0619 as a complete set.
 +
 
 +
== Rare parasite armor ==
 +
 
 +
The shared infestation routine has a rare branch which force-equips one of these armor-slot results instead of a standard parasite. A Dewormer does not remove them.
 +
 
 +
{| class="wikitable sortable"
 +
! ID
 +
! Living armor
 +
! ATK
 +
! DEF
 +
! MAG
 +
! AGI
 +
! Main elemental resistance
 
|-
 
|-
|Cillia Parasite
+
| 0925 || '''Parasite Armor De Rol''' || +20 || +60 || +20 || +100 || Fire
|3
 
|$200
 
|Breasts, Nipples
 
|Increases EX, eventually causes character to lactate
 
 
|-
 
|-
|Tube Parasite
+
| 0926 || '''Parasite Armor Nengal''' || +20 || +100 || +20 || +60 || Ice
|5
 
|$300
 
|Anus
 
|Lose anal virginity, Increase Ex
 
 
|-
 
|-
|Sea Anenome
+
| 0927 || '''Parasite Armor Vajra''' || +60 || +40 || +60 || +40 || Lightning
|3
 
|$100
 
|Breasts, Nipples
 
|Increase Ex, Causes Lactation
 
 
|-
 
|-
|Binding Parasite
+
| 0928 || '''Bacterial Armor Rafteria''' || +20 || +100 || +20 || +100 || Holy
|1
+
|}
|$1
+
 
|
+
All four descriptions also list resistance to drain/force, bleeding, capture and instant death. Despite their strong bonuses, they are still living, cursed armor and require a broader removal method such as Demon Stripper or a compatible event.
|Replaces Weapon
+
 
 +
== Invasive Parasite ==
 +
 
 +
The '''Invasive Parasite''' is a deliberate progressive transformation, not a result of ordinary parasite eggs.
 +
 
 +
=== Starting the infestation ===
 +
 
 +
At night in [[RyonaRPG/Locations/RAYON Village|RAYON Village]], the product tester can offer to attach the Invasive Parasite. If the character cannot accept it because of conflicting equipment or a stronger curse, the test fails. After the initial infestation, the tester can also supply '''Nutrient Tonic?''', the item used to accelerate its growth.
 +
 
 +
The parasite also appears as special scene equipment in the Drea○ Club waiting-room event, but the RAYON tester is the dependable route for starting the full progression.
 +
 
 +
=== Growth stages ==
 +
 
 +
The parasite tracks both growth and invasion progress. As it develops, it fills the remaining equipment slots with new body parts. Later stages add attacks and body changes, then begin overriding the host's decisions.
 +
 
 +
{| class="wikitable sortable"
 +
! Stage
 +
! Current equipment added
 +
! Slot and stats
 +
! Main change
 
|-
 
|-
|Leeching Parasites
+
| Initial
|4
+
| '''Invasive Parasite''' (0619)
|$200
+
| Armor; ATK -64, DEF +64, MAG -64, AGI +64
|Clitoris
+
| Begins the infestation and periodic parasite activity.
|Increase Ex, eventually turns character into a hermaphrodite
 
 
|-
 
|-
|Meat Rope
+
| 1
|3
+
| '''Invasive Parasite Hide''' (0866)
|$1
+
| Shield; +128 ATK/DEF/MAG/AGI
|Body, Vagina, Anus
+
| Raises attack frequency and begins changing the chest.
|Reduce Movement speed, Increase Ex
 
 
|-
 
|-
|Catheter Parasite
+
| 2
|5
+
| '''Invasive Parasite Abdomen''' (0883)
|
+
| Head; ATK +44, DEF +32, MAG +12, AGI +37
|Urethra
+
| Adds lower-body attacks and further modification.
|Increases EX, Makes character more likely to pee on stimulation or orgasm
 
 
|-
 
|-
|Mycetozoan Parasite
+
| 3
|4
+
| '''Invasive Parasite Tentacle''' (0884)
|
+
| Weapon; ATK +167
|Anus
+
| Adds a weapon tentacle, more frequent attacks and autonomous insemination behavior.
|Increases EX
 
 
|-
 
|-
|Beast's Egg
+
| 4
|5
+
| '''Invasive Parasite Head''' (0885)
|$1332
+
| Accessory; ATK +26, DEF +31, MAG +56, AGI +60
|
+
| Begins controlling the host's thoughts and preparing the final takeover.
|Increases EX, Slows Character, Raises Vagina Sensitivity
 
 
|-
 
|-
|Riverblossom Slime
+
| 5
|5
+
| '''Mature Invasive Parasite''' (0886)
|
+
| Armor; ATK +116, DEF +195, MAG +145, AGI +173
|Breasts, Vagina, Anus
+
| Replaces the initial armor and completes the takeover of the host.
|Increases EX, Slows Character, Can cause pregnancy
 
 
|}
 
|}
:'''Note''': slot 1 = Weapon, 2 = Off-hand, 3 = Armor, 4 = Sub-armor, 5 = Accessory
 
  
In addition to this, some additional parasites have been found. They have decent stats, fit into the armour slot and provide resistance to one element. They can be obtained from the little girl's slave event and possibly from eggs as well (need more information).
+
'''Nutrient Tonic?''' advances the growth system; it does not cure the infection. Ordinary rest and parasite events also interact with its development.
 +
 
 +
=== Removing it ==
 +
 
 +
* A Dewormer has no effect on any Invasive Parasite stage.
 +
* Demon Stripper has a specific early-removal path for it.
 +
* As invasion progresses, the parasite can make the character discard Demon Stripper instead of using it.
 +
* Once the takeover state is established, the game explicitly blocks ordinary equipment removal.
 +
 
 +
Use Demon Stripper early if the goal is to escape the route. Do not deliberately feed the parasite and assume it will remain removable later.
 +
 
 +
== Other living equipment and slime systems ==
 +
 
 +
These items are related in theme, but they are not members of the eight-item standard parasite pool.
 +
 
 +
{| class="wikitable sortable"
 +
! ID
 +
! Item
 +
! How it is obtained or applied
 +
! Important distinction
 +
|-
 +
| 0329
 +
| '''Egg of Beast'''
 +
| Sold in [[RyonaRPG/Locations/Lemuria Slave Market|Lemuria Slave Market]] and used by related events
 +
| A living accessory with periodic effects. It can be removed normally and is not a parasite-egg result.
 +
|-
 +
| 0717
 +
| '''Demon-Flower River Slime'''
 +
| Attached by the stray researcher's slime event outside RAYON Village; some reproduction events can also leave it equipped
 +
| An accessory with its own slime-coating logic. The Purification Ankh and other slime immunity can prevent attachment.
 +
|-
 +
| 0718
 +
| '''Sex-Slave Training Slime'''
 +
| A separate usable item, including a source in [[RyonaRPG/Locations/Hidden, the Lurking Town|Hidden, the Lurking Town]]
 +
| Inserts a slime when the relevant body site is not blocked, applies aphrodisiac effects and starts a multi-day inn sequence. It is not equippable standard parasite gear.
 +
|-
 +
| 1191
 +
| '''Modified Egg of Beast'''
 +
| Created through the [[RyonaRPG/Locations/Sea-Roar Village|Sea-Roar Village]] living-item route
 +
| A modified living accessory with its own scripted effects.
 +
|-
 +
| 1192
 +
| '''Pink Slime'''
 +
| Created through the Sea-Roar Village living-item route
 +
| A living accessory with its own event path.
 +
|-
 +
| 1384
 +
| '''Invasive Rubber Suit'''
 +
| Life Sciences Research Institute rubber-suit sequence
 +
| Parasitic armor belonging to the rubber-suit system, not the Invasive Parasite progression.
 +
|}
 +
 
 +
'''Demon Insect Egg''' (0706) is only a material used by inn alchemy. It does not infect the player when used and is not the same object as a parasite-egg trap.
 +
 
 +
== Prevention ==
 +
 
 +
=== Ordinary parasites ===
 +
 
 +
The following suits prevent the shared ordinary infestation routine while their protection is active:
 +
 
 +
* '''Bio-Rubber Suit''';
 +
* '''Invasive Rubber Suit''';
 +
* '''Assimilation Rubber Suit'''.
 +
 
 +
Slot conflicts and some cursed equipment can also make an attempt fail. This is not dependable protection: fixed parasite events and separate living-equipment systems do not all use the same checks.
 +
 
 +
=== Slime attachment ===
 +
 
 +
'''Purification Ankh''' prevents slime coating. It is useful against Demon-Flower River Slime, but it does not provide universal immunity to the eight ordinary parasites or the Invasive Parasite.
 +
 
 +
== Removal and treatment ==
 +
 
 +
{| class="wikitable"
 +
! Method
 +
! Removes
 +
! Does not remove / limits
 +
! Where
 +
|-
 +
| '''Dewormer''' (0232)
 +
| Any equipped standard parasite from 0611 through 0618; one use checks and removes all supported parasites currently attached
 +
| Invasive Parasite stages, rare parasite armor, Demon-Flower River Slime and Sex-Slave Training Slime
 +
| Fixed bottles in the Poison-Insect Labyrinth shelter and Abandoned Factory passage/elevator; can also be created through the ordinary support-magic creation menu for 1,500 EXP
 +
|-
 +
| '''Demon Stripper''' (0241)
 +
| Most removable cursed equipment, rare parasite armor and an early Invasive Parasite
 +
| Late Invasive Parasite and fused takeover states can make the character discard or defeat the item
 +
| Found in the Poison-Insect Labyrinth and a small number of other sources
 +
|-
 +
| Applied Entomology scientist
 +
| Standard parasites
 +
| Does not document a cure for the mature Invasive Parasite
 +
| [[RyonaRPG/Locations/Life Sciences Research Institute|Life Sciences Research Institute]]; the scientist offers to remove and buy recognized parasites from the Poison-Insect Labyrinth
 +
|-
 +
| Abandoned Factory treatment event
 +
| Parasites supported by that B2F sequence
 +
| Event-specific rather than a portable cure
 +
| Abandoned Factory B2F; the result reports how many parasites were removed
 +
|-
 +
| Sea-Roar Village traveler
 +
| Buys several parasite and living-item types from the player
 +
| This is a trade dialogue, not a general cure for every stage or system
 +
| Sea-Roar Village travelers' building
 +
|}
 +
 
 +
If the game says there is no room for a parasite, the attempt failed; there is nothing to remove. If a Dewormer says that nothing happened, none of its eight supported parasite items was equipped.
 +
 
 +
== Hidden Life Sciences infection ==
 +
 
 +
The Applied Entomology Lab also contains a hidden infection chain which is separate from equippable parasites. Taking the unusual sample starts a small-organism observation state. Later rest and event stages can lead to death or an Arachne transformation.
 +
 
 +
A plant in the Plant Physiology Lab cures this hidden infection. The old English page called the condition “Bloody Death Disease,” but the current game does not present that phrase as a formal database name.
  
== Removing parasites ==
+
== Troubleshooting ==
Parasites can be removed by talking to the nun in RAYON or the hidden town in the east continent. Doing it this way will increase your character's EX and reduce them to 1hp and mana. Alternatively, you can pay the priest at RAYON to remove them specifically, or talk to one of the scientists at the Life Sciences Laboratory in Shrike, who will take them from you and give you gold in return. Lastly, parasites (along with cursed items) can be removed by using the rare Stripping Spirit item, obtainable from the first room of the Bug Labyrinth and from the Night City casino for 3000 coins.
 
  
== Bloody Death Disease ==
+
* '''A parasite egg did nothing:''' the needed slot was occupied, rubber-suit protection was active, or another equipment restriction blocked it.
In the Life Sciences Laboratory's Applied Entomology Laboratory (fourth door at the northwestern section of the main lab), there is an open cell at the back with a "First Time" Cure inside represented by a shiny dot. Slave characters entering this cell will be trapped inside and suffer the devoured by carnivorous insects bad end; normal characters however may collect this item. Upon doing so the character will remark about seeing something small but dismiss it as just her imagination. At this point she is considered infected.
+
* '''A Dewormer did nothing:''' it only handles Ciliated, Tubed, Sea Anemone?, Cordlike, Leech Swarm, Flesh Rope, Catheter-Type and Slime-Mold parasites.
 +
* '''The parasite came back or changed form:''' check whether the Invasive Parasite or a separate rubber/slime progression is active. Those are not ordinary one-item infections.
 +
* '''A parasite's event behaved differently on another character:''' several periodic sequences branch on anatomy, abilities, pregnancy/body state, equipment and random checks.
 +
* '''A shop price from an older guide is missing:''' old tables confused database item values with confirmed shop inventories. Standard parasites are acquired through events, not a normal RAYON parasite shop.
  
The infection progresses every time they sleep, with two gradual changes in monologue indicating progression. The character will lose her virginity while being sexually stimulated (be careful as this may cause the character to be stuck in an endless loop instead). At one point during the final stages of the disease the character will start hearing chaotic voices; choosing to ignore them will eventually result in death, while listening to them will cause the infection to transform her into an Arachne.
+
== See also ==
  
To cure the infection, the character has to visit the Physiological Botany Laboratory (second door) and consume the leaves of the deworming plant grown in the northeastern section of that lab. Information about the plant may be found in the book about the disease located on the second bookshelf from the left of the library door in the Life Sciences Laboratory although this is not strictly necessary to access the cure.
+
* [[RyonaRPG/Curse Level|Curse Level]]
 +
* [[RyonaRPG/Equipment|Equipment]]
 +
* [[RyonaRPG/Status|Status]]
 +
* [[RyonaRPG/Abilities|Abilities]]
 +
* [[RyonaRPG/Item ID|Item IDs]]
 +
* [[RyonaRPG/Locations|Locations]]
 +
* [[RyonaRPG/H Events and Endings|H Events and Endings]]

Latest revision as of 05:07, 4 September 2026

RyonaRPG edit


Japanese release
Core 0163
2026-04-29



Gameplay:

Technical help:


External links:

The Japanese uploader and board may require a Japanese VPN on some networks.

Parasites are living pieces of equipment that can attach themselves to the player through traps, enemies and scripted events. Most cannot be unequipped normally. Each one occupies a real equipment slot, changes the wearer's stats and may trigger its own periodic events.

There are several related systems which should not be confused with one another:

  • the eight standard parasites;
  • four rare living armors produced by the same infestation routine;
  • the separate, evolving Invasive Parasite;
  • slime, rubber-suit and other living-equipment systems.

Quick survival guide

  • Carry a Dewormer before exploring parasite-heavy areas. One is found in the Poison-Insect Labyrinth shelter and another in the Abandoned Factory passage and elevator area.
  • Keep equipment slots open only if you are willing to risk an infestation. An ordinary parasite must have a compatible free slot in order to attach.
  • Bio-Rubber Suit, Invasive Rubber Suit and Assimilation Rubber Suit protect against the ordinary infestation routine while their protection is active.
  • A Dewormer removes standard parasites only. It does not remove the Invasive Parasite, rare parasite armor or slime equipment.
  • Save before accepting an unknown living product or deliberately advancing the Invasive Parasite. Its later stages interfere with removal.

How ordinary infestation works

Most parasite eggs, insects and suspicious objects call one shared infestation routine. It chooses either one of the eight standard parasites or, rarely, one of four living armors. The selected result is then forced into its normal equipment slot.

The attempt can fail when:

  • the required slot is already occupied;
  • sufficiently cursed equipment occupies or protects the required body site;
  • a metal chastity belt blocks the selected parasite;
  • rubber-suit protection is active.

Some characters or forms can tame the creature instead. In that case, the selected parasite or living armor is added to the inventory rather than attached. The exact result is still random.

This shared routine does not produce the Invasive Parasite, Demon-Flower River Slime, Egg of Beast or the other separate systems listed later on this page.

If a parasite is obtained as an inventory item instead, equipping it manually activates the same equipment and periodic-event logic. This can happen when a compatible character tames an infestation result or when an event awards living equipment directly. Check the removal method before equipping one merely to inspect it.

Where infestation can happen

The table lists every current non-debug location group with a verified parasite attachment event. Individual eggs and enemies are often spread over several rooms within the same location.

Location Trigger Possible result Notes
Poison-Insect Labyrinth Walk-on insect and egg events throughout the Swarm routes Standard parasite or rare parasite armor One of the main sources. A fixed Dewormer bottle is available in the shelter.
Gestahl Sorcery Ruins Eggs and enemy events throughout the ruins Standard parasite or rare parasite armor The Arachne area contains the greatest concentration.
Demon Castle Gaddem Trapped objects and chests in the left and right storage areas Standard parasite or rare parasite armor These are traps, not ordinary treasure rewards.
Suspicious Temple Suspicious objects and piggy banks in the middle areas Standard parasite or rare parasite armor The event text changes with the object, but both use the same resolver.
Life Sciences Research Institute Insect events in the underground entrance branch Standard parasite or rare parasite armor Other Institute routes use separate rubber-suit and hidden-infection systems.
Norsley Sea of Decay Enemies and hazards in the passages, flower fields, midpoint, Demon-Flower River and branch areas Standard/rare random result, or a fixed Slime-Mold Parasite Slime-Mold Parasite is especially common here.
Abandoned Factory Sewer enemies and B2F hazards Standard/rare random result, Catheter-Type Parasite or Slime-Mold Parasite B1F enemies directly apply Slime-Mold Parasite. B2F includes both random and fixed infections. A Dewormer bottle is available in the passage and elevator area.
Writhing Cave Larvae on the A route Sea Anemone? This is a fixed infection rather than a random parasite egg.
Mountain Cave, Monster-Flower River Monster-flower enemies and hazards Catheter-Type Parasite and Cordlike Parasite These events can attach both fixed parasite types.
Suburban Treasury Insect events on B2F Standard parasite or rare parasite armor A smaller source not listed on the old parasite guide.
RAYON Village The little girl's special dialogue while the player is in certain slave or dog-like states Standard parasite or rare parasite armor She attaches a random result through the shared routine; the village accessory shop does not sell the parasite set.
Mountain Cave, Lamia ending Ending event Flesh Rope The ending directly equips the item.

Additional scripted scenes can force a specific parasite without using the random routine. These include some transformation or outfit events; the Drea○ Club waiting-room sequence, for example, can use Flesh Rope or the Invasive Parasite as scene equipment. Such scenes are not reliable farming methods.

Standard parasites

All eight standard parasites reduce Attack and Magic by 20. Most also reduce Agility by 20; Catheter-Type Parasite and Slime-Mold Parasite reduce Defense by 20 as well. Their periodic effects come from event code, so the database description alone does not show everything they do.

ID Parasite Slot Stat changes Ongoing behavior and fixed sources
0611 Ciliated Parasite Armor ATK -20, MAG -20, AGI -20 Periodically attacks the chest. Its longer sequence can cause lactation and further breast-related changes.
0612 Tubed Parasite Accessory ATK -20, MAG -20, AGI -20 Periodically drains bodily fluids. Its result varies with the wearer's current anatomy and body state.
0613 Sea Anemone? Armor ATK -20, MAG -20, AGI -20 A two-tentacled body parasite with periodic attacks. Writhing Cave larvae apply it directly.
0614 Cordlike Parasite Weapon ATK -20, MAG -20, AGI -20 Replaces the weapon and coils around the body. Monster-Flower River can apply it together with a Catheter-Type Parasite.
0615 Swarm of Leech Parasites Head ATK -20, MAG -20, AGI -20 Periodically attacks sensitive areas. Its extended event chain can cause a permanent body change.
0616 Flesh Rope Armor ATK -20, MAG -20, AGI -20 Wraps and stimulates the body. It is also attached directly by the Lamia ending and some scripted outfit events.
0617 Catheter-Type Parasite Accessory ATK -20, DEF -20, MAG -20, AGI -20 A urethral parasite with periodic stimulation and urination-related effects. It has fixed sources in Monster-Flower River and the Abandoned Factory.
0618 Slime-Mold Parasite Head ATK -20, DEF -20, MAG -20, AGI -20 An intestinal parasite which can multiply through its periodic sequence. Norsley Sea of Decay and the Abandoned Factory have many fixed infection events.

The numbers stored as item prices are not proof that a shop sells these parasites. No normal shop in the current game sells items 0611-0619 as a complete set.

Rare parasite armor

The shared infestation routine has a rare branch which force-equips one of these armor-slot results instead of a standard parasite. A Dewormer does not remove them.

ID Living armor ATK DEF MAG AGI Main elemental resistance
0925 Parasite Armor De Rol +20 +60 +20 +100 Fire
0926 Parasite Armor Nengal +20 +100 +20 +60 Ice
0927 Parasite Armor Vajra +60 +40 +60 +40 Lightning
0928 Bacterial Armor Rafteria +20 +100 +20 +100 Holy

All four descriptions also list resistance to drain/force, bleeding, capture and instant death. Despite their strong bonuses, they are still living, cursed armor and require a broader removal method such as Demon Stripper or a compatible event.

Invasive Parasite

The Invasive Parasite is a deliberate progressive transformation, not a result of ordinary parasite eggs.

Starting the infestation

At night in RAYON Village, the product tester can offer to attach the Invasive Parasite. If the character cannot accept it because of conflicting equipment or a stronger curse, the test fails. After the initial infestation, the tester can also supply Nutrient Tonic?, the item used to accelerate its growth.

The parasite also appears as special scene equipment in the Drea○ Club waiting-room event, but the RAYON tester is the dependable route for starting the full progression.

= Growth stages

The parasite tracks both growth and invasion progress. As it develops, it fills the remaining equipment slots with new body parts. Later stages add attacks and body changes, then begin overriding the host's decisions.

Stage Current equipment added Slot and stats Main change
Initial Invasive Parasite (0619) Armor; ATK -64, DEF +64, MAG -64, AGI +64 Begins the infestation and periodic parasite activity.
1 Invasive Parasite Hide (0866) Shield; +128 ATK/DEF/MAG/AGI Raises attack frequency and begins changing the chest.
2 Invasive Parasite Abdomen (0883) Head; ATK +44, DEF +32, MAG +12, AGI +37 Adds lower-body attacks and further modification.
3 Invasive Parasite Tentacle (0884) Weapon; ATK +167 Adds a weapon tentacle, more frequent attacks and autonomous insemination behavior.
4 Invasive Parasite Head (0885) Accessory; ATK +26, DEF +31, MAG +56, AGI +60 Begins controlling the host's thoughts and preparing the final takeover.
5 Mature Invasive Parasite (0886) Armor; ATK +116, DEF +195, MAG +145, AGI +173 Replaces the initial armor and completes the takeover of the host.

Nutrient Tonic? advances the growth system; it does not cure the infection. Ordinary rest and parasite events also interact with its development.

= Removing it

  • A Dewormer has no effect on any Invasive Parasite stage.
  • Demon Stripper has a specific early-removal path for it.
  • As invasion progresses, the parasite can make the character discard Demon Stripper instead of using it.
  • Once the takeover state is established, the game explicitly blocks ordinary equipment removal.

Use Demon Stripper early if the goal is to escape the route. Do not deliberately feed the parasite and assume it will remain removable later.

Other living equipment and slime systems

These items are related in theme, but they are not members of the eight-item standard parasite pool.

ID Item How it is obtained or applied Important distinction
0329 Egg of Beast Sold in Lemuria Slave Market and used by related events A living accessory with periodic effects. It can be removed normally and is not a parasite-egg result.
0717 Demon-Flower River Slime Attached by the stray researcher's slime event outside RAYON Village; some reproduction events can also leave it equipped An accessory with its own slime-coating logic. The Purification Ankh and other slime immunity can prevent attachment.
0718 Sex-Slave Training Slime A separate usable item, including a source in Hidden, the Lurking Town Inserts a slime when the relevant body site is not blocked, applies aphrodisiac effects and starts a multi-day inn sequence. It is not equippable standard parasite gear.
1191 Modified Egg of Beast Created through the Sea-Roar Village living-item route A modified living accessory with its own scripted effects.
1192 Pink Slime Created through the Sea-Roar Village living-item route A living accessory with its own event path.
1384 Invasive Rubber Suit Life Sciences Research Institute rubber-suit sequence Parasitic armor belonging to the rubber-suit system, not the Invasive Parasite progression.

Demon Insect Egg (0706) is only a material used by inn alchemy. It does not infect the player when used and is not the same object as a parasite-egg trap.

Prevention

Ordinary parasites

The following suits prevent the shared ordinary infestation routine while their protection is active:

  • Bio-Rubber Suit;
  • Invasive Rubber Suit;
  • Assimilation Rubber Suit.

Slot conflicts and some cursed equipment can also make an attempt fail. This is not dependable protection: fixed parasite events and separate living-equipment systems do not all use the same checks.

Slime attachment

Purification Ankh prevents slime coating. It is useful against Demon-Flower River Slime, but it does not provide universal immunity to the eight ordinary parasites or the Invasive Parasite.

Removal and treatment

Method Removes Does not remove / limits Where
Dewormer (0232) Any equipped standard parasite from 0611 through 0618; one use checks and removes all supported parasites currently attached Invasive Parasite stages, rare parasite armor, Demon-Flower River Slime and Sex-Slave Training Slime Fixed bottles in the Poison-Insect Labyrinth shelter and Abandoned Factory passage/elevator; can also be created through the ordinary support-magic creation menu for 1,500 EXP
Demon Stripper (0241) Most removable cursed equipment, rare parasite armor and an early Invasive Parasite Late Invasive Parasite and fused takeover states can make the character discard or defeat the item Found in the Poison-Insect Labyrinth and a small number of other sources
Applied Entomology scientist Standard parasites Does not document a cure for the mature Invasive Parasite Life Sciences Research Institute; the scientist offers to remove and buy recognized parasites from the Poison-Insect Labyrinth
Abandoned Factory treatment event Parasites supported by that B2F sequence Event-specific rather than a portable cure Abandoned Factory B2F; the result reports how many parasites were removed
Sea-Roar Village traveler Buys several parasite and living-item types from the player This is a trade dialogue, not a general cure for every stage or system Sea-Roar Village travelers' building

If the game says there is no room for a parasite, the attempt failed; there is nothing to remove. If a Dewormer says that nothing happened, none of its eight supported parasite items was equipped.

Hidden Life Sciences infection

The Applied Entomology Lab also contains a hidden infection chain which is separate from equippable parasites. Taking the unusual sample starts a small-organism observation state. Later rest and event stages can lead to death or an Arachne transformation.

A plant in the Plant Physiology Lab cures this hidden infection. The old English page called the condition “Bloody Death Disease,” but the current game does not present that phrase as a formal database name.

Troubleshooting

  • A parasite egg did nothing: the needed slot was occupied, rubber-suit protection was active, or another equipment restriction blocked it.
  • A Dewormer did nothing: it only handles Ciliated, Tubed, Sea Anemone?, Cordlike, Leech Swarm, Flesh Rope, Catheter-Type and Slime-Mold parasites.
  • The parasite came back or changed form: check whether the Invasive Parasite or a separate rubber/slime progression is active. Those are not ordinary one-item infections.
  • A parasite's event behaved differently on another character: several periodic sequences branch on anatomy, abilities, pregnancy/body state, equipment and random checks.
  • A shop price from an older guide is missing: old tables confused database item values with confirmed shop inventories. Standard parasites are acquired through events, not a normal RAYON parasite shop.

See also