---
title: "In'youchuu Gaiden"
description: "The \"Gaiden\" mini series is comprised of three short episodes that lead into the foruth game of the series, Inyouchuu Kyou. Gaiden 1: The Shiratori Sisters. Mik"
image: "https://t.vndb.org/cv/05/112505.jpg"
---

# In'youchuu Gaiden

![In'youchuu Gaiden](https://t.vndb.org/cv/05/112505.jpg)

**Alternative Title:** 淫妖蟲 外伝

**Developer:** TinkerBell

**Release date:** May 16, 2014

**Platform:** Windows

**Language:** Japanese

**Rating:** 6.5/10 (20 votes)

## Description
The "Gaiden" mini series is comprised of three short episodes that lead into the foruth game of the series, Inyouchuu Kyou.
Gaiden 1: The Shiratori Sisters.
Mikoto goes looking for Takeru, who has gone missing for some days, when she finds her she is being raped and made to give birth to monsters. Mikoto has to save her without falingl victim to the possessed humans tormenting her sister.

Gaiden 2: Sui.
As usual, the black cat brigade is in deep red. If they can't find some money soon, they won't be able to pay the rent.
Since everyone else is out on some other mission, Yoru asks Sui to work part tim as a waitress in a coffee shop. Despite her shy nature she has no problem working as a waitress, except for a pervert old man who takes every occasion to grope her, but he's easily dissuaded. However one day the old man suddenly appears and there is something different about him...

Gaiden 3: The Tsukishiro twins.
This episode is in the beginning of the 20th century. Ouka and Kikuka are working as demon hunters and they are investiganting the case of some missing girls in a rural area. They discover that a powerful demon called Gyuki is behind the missing cases.

## Characters
### Shiratori Mikoto (白鳥 深琴)
- **Gender:** Female
- **Hair:** Red, Ahoge, Ponytail, Long, Straight, V Bangs, Spiky Bangs, Sidehair
- **Body:** Teen, Slim, Pale, Nipple Piercing, Big Breasts, Huge Breasts
- **Clothes:** School Uniform, Earrings, Thigh-high Stockings, Bikini, Ribbon Hair Tie, Torn Clothing
- **Engages in:** Fighting, Lactation, Childbirth, Monster Birth, Anal Monster Birth, Navel Monster Birth
- **Eyes:** Blue, Tsurime
- **Items:** No-dachi
- **Personality:** Friendly, Clumsy, Energetic
- **Subject of:** Mind Control, Torture, Breast Expansion, Forced Pregnancy, Penis Removal, Penis Growth, Sexual Corruption, Tentacle Restraint
- **Role:** Twin Sister, High School Student
- **Voiced by:** Mayuri

### Shiratori Takeru (白鳥 武)
- **Gender:** Female
- **Hair:** Shoulder-length, Straight, Spiky Bangs, Orange
- **Body:** Teen, Slim, Pale, Scar, Linked Piercings, Medium Breasts
- **Clothes:** Trousers, Glasses, Jacket, Necktie, Shirt, Boots, Pantyhose, Belt, Bikini, Hairpin, Crop Top, Slave Collar, Lace Garter Belt Stockings
- **Engages in:** Fighting, Lactation, Childbirth, Monster Birth, Anal Monster Birth
- **Subject of:** Mind Control, Pregnancy, Breast Expansion, Penis Growth, Sexual Corruption
- **Role:** Daughter, Twin Sister
- **Personality:** Smart, Streetwise
- **Eyes:** Tsurime, Teal
- **Voiced by:** Kaguya Rinko

### Yoru Aoi (夜・葵)
- **Gender:** Unknown
- **Hair:** Black
- **Eyes:** Amber, Tsurime, Slit Pupils, One-eyed
- **Body:** Scar, Furry Tail, Non-Humanoid
- **Clothes:** Collar, Bell (accessory)
- **Role:** Cat

### Kayama Sui (香山 水依)
- **Gender:** Female
- **Hair:** Brown, Twin Tails, Waist Length+, Straight, Kemonomimi, Blunt Bangs
- **Body:** Teen, Slim, Pale, Big Breasts, Gigantic Breasts
- **Eyes:** Violet, Tareme
- **Clothes:** Jacket, Necktie, Skirt, Pantyhose, One Piece Swimsuit, Blouse, Hair Tie, Ribbon Hair Accessory, Old Type School Swimsuit, Torn Pantyhose (damaged), Sailor School Uniform, Slave Collar
- **Subject of:** Mind Control, Pregnancy, Breast Expansion, Human Branding
- **Role:** Childhood Friend, Yamato Nadeshiko
- **Personality:** Kind
- **Engages in:** Lactation, Childbirth, Monster Birth, Anal Monster Birth, Nipple Monster Birth, Navel Monster Birth
- **Voiced by:** Ichihana Ran

### Tsukishiro Kikuka (月白 菊花)
- **Gender:** Female
- **Hair:** Black, Bob Cut, Shoulder-length, Straight, Blunt Bangs, Sidehair
- **Body:** Teen, Slim, Pale, Small Breasts
- **Eyes:** Blue, Tareme
- **Clothes:** Miniskirt, Knee-high Socks, Bikini, Hairpin, Crop Top, Choker, Sailor School Uniform, Thigh Band
- **Personality:** Friendly, Energetic
- **Role:** Full Sister, Older Sister
- **Subject of:** Homicide, Asphyxia
- **Voiced by:** Fujii Nekoko

### Tsukishiro Ouka (月白 桜花)
- **Gender:** Female
- **Hair:** Black, Hime Cut, Waist Length+, Straight, Blunt Bangs, Sidehair
- **Body:** Teen, Slim, Pale, Conjoined Twins, Small Breasts
- **Clothes:** Miniskirt, Knee-high Socks, Hairpin, Crop Top, Old Type School Swimsuit, Choker, Sailor School Uniform, Thigh Band, Mary Jane
- **Personality:** Shy, Honorable, Kind, Taciturn
- **Role:** Full Sister, Yamato Nadeshiko, Younger Sister
- **Subject of:** Torture
- **Eyes:** Garnet, Tsurime
- **Engages in:** Monster Birth
- **Voiced by:** Kazuna Sayaka

## Shops
- [Official Website](http://www.cyberworks.jp/tink/inyou_fullcomp/)
- [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ01000840.html)
- [Getchu](http://www.getchu.com/soft.phtml?id=1270538)

## Releases
### Japanese
- **2014-05-16**: In'youchuu Gaiden ~Mikoto to Takeru Hen Kizashi no Shou~ - [Official website](http://www.cyberworks.jp/tink/inyou_gaiden/#top), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=20570), [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ008487.html)
- **2014-05-30**: In'youchuu Gaiden ~Sui Hen Toraware no Shou~ - [Official website](http://www.cyberworks.jp/tink/inyou_gaiden/#top), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=20572), [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ008490.html)
- **2014-06-13**: In'youchuu Gaiden ~Tsukishiro Shimai Hen Hajimari no Shou~ - [Official website](http://www.cyberworks.jp/tink/inyou_gaiden/#top), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=20573), [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ008492.html)
- **2015-01-30**: In'youchuu Kyou ~Kuon no Hime Miko~ - [Official website](http://www.cyberworks.jp/tink/kyouape/), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=21343), [Getchu](http://www.getchu.com/soft.phtml?id=835407)
- **2018-05-25**: In'youchuu - Complete Box - [Official website](http://www.cyberworks.jp/tink/inyotyu_pack/), [Getchu](http://www.getchu.com/soft.phtml?id=1000947), [DMM](https://www.dmm.co.jp/mono/pcgame/-/detail/=/cid=1001tb063p/)
- **2018-07-27**: In'youchuu - Complete Box - 2nd Edition - [Official website](http://www.cyberworks.jp/tink/inyotyu_pack/), [Getchu](http://www.getchu.com/soft.phtml?id=1008685), [DMM](https://www.dmm.co.jp/mono/pcgame/-/detail/=/cid=1001tb063p2/)
- **2019-07-26**: In'youchuu - Complete Box - 3rd Edition - [Official website](http://www.cyberworks.jp/tink/inyotyu_pack/), [Getchu](http://www.getchu.com/soft.phtml?id=1049874), [DMM](https://www.dmm.co.jp/mono/pcgame/-/detail/=/cid=1001tb063p3/)
- **2023-08-25**: In'youchuu Complete Box - [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ01000840.html)
- **2024-04-26**: In'youchuu - Full Complete Box - [Official website](http://www.cyberworks.jp/tink/inyou_fullcomp/), [Getchu](http://www.getchu.com/soft.phtml?id=1270538), [DMM](https://www.dmm.co.jp/mono/pcgame/-/detail/=/cid=1001tb063fp_t/), [DMM](https://www.dmm.co.jp/mono/pcgame/-/detail/=/cid=1001tb063fp/)

## Tags
ADV, Unavoidable Rape, Tentacle Rape, Nukige, Pregnant Sex, High Amounts of Rape, Vibrators, Defloration, Scat, Internal Exhibition of Sex, Lactation During Sex, Multiple Penetration, Bukkake, Erotic Spanking, Ejaculation Forewarner, Enema, Doggy Style, Gang Rape, Clothing Damage, Monster Birth, High School Student Heroine, Heroine with Big Breasts, Heroine with Small Breasts (Non-Loli), Group Sex of One Female and Several Males, Female Protagonist

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---
*View the full details at [pinovel.net/v15978](https://pinovel.net/v15978).*

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```