---
title: "In'yoku Sousa ~Kyoushitsu de no Seiyoku Jikken~"
description: "Locked in a secret room are a number of men and one beautiful girl. They are confined within without knowledge of what or why this is happening.  It is in this "
image: "https://t.vndb.org/cv/53/129653.jpg"
---

# In'yoku Sousa ~Kyoushitsu de no Seiyoku Jikken~

![In'yoku Sousa ~Kyoushitsu de no Seiyoku Jikken~](https://t.vndb.org/cv/53/129653.jpg)

**Alternative Title:** 淫欲操作～密室での性欲実験～

**Aliases:** Lust Management -Pleasure Experiment In Sealed Chambers-

**Developer:** Devil-seal

**Release date:** Oct 21, 2011

**Platform:** Windows, Android

**Language:** Japanese

**Rating:** 6.0/10 (12 votes)

## Description
Locked in a secret room are a number of men and one beautiful girl. They are confined within without knowledge of what or why this is happening.

It is in this place that an experiment is being conducted.
"Within these room, how long will these men be able to hold back their lust?" Periodically, videos aimed at arousing the men are shown. Initially they're just anxiously minding the girl's presence, but bit by bit wicked intentions start to visit their minds.

Day by day they're shaken by carnal desires, for sharing the room with them is a beautiful girl.

Before long in this narrow and crowded room, the men's rationality reaches its limit, and any previously established order crumbles into dust...

[Translated from [Getchu synopsis](http://www.getchu.com/soft.phtml?id=721679)]

## Characters
### Iishiro Chihaya (飯代 智早)
A kind girl that believes that everyone is a good person.
Her father died some years ago and she lives with her mother.
Since her mother became bedridden due to sickness, she volunteered for the experiment to get money.

- **Gender:** Female
- **Measurements:** Height: 157cm, Bust-Waist-Hips: 87-57-85cm
- **Hair:** Brown, Waist Length+
- **Body:** Teen
- **Eyes:** Amber
- **Clothes:** Dress, Blindfold, Panties, Bra
- **Personality:** Friendly, Kind, Naive
- **Subject of:** Confinement
- **Voiced by:** Himari

### Shinenji Maachi (神園寺 まあち)
An arrogant and spoiled young lady.
Daughter of a financial clique that is having economical problems. 
She wants the reward money to avoid going bankrupt.

- **Gender:** Female
- **Measurements:** Height: 155cm, Bust-Waist-Hips: 85-55-83cm
- **Hair:** Blond, Ponytail, Long
- **Body:** Teen
- **Clothes:** Shirt, Skirt, Bow Tie, Panties, Bra, Ribbon Hair Tie
- **Personality:** Tsundere, Spoiled, Arrogant
- **Subject of:** Confinement
- **Eyes:** Pink
- **Voiced by:** Okuyama Ayumi

### Yatsugami Kanon (八神 奏音)
A mysterious and inexpressive girl that works as an assistant for the experiment. She will do anything that the professor ask her.

- **Gender:** Female
- **Measurements:** Height: 152cm, Bust-Waist-Hips: 75-53-73cm
- **Hair:** White, Bob Cut, Short
- **Personality:** Hard Worker, Stoic
- **Eyes:** Red
- **Body:** Kid
- **Clothes:** Dress, Thigh-high Stockings, Gothic, Panties, Bra
- **Engages in:** Cleaning
- **Role:** Secretary
- **Voiced by:** Harukawa Akari

## Shops
- [Official Website](http://softhouse-seal.com/product/052-inyoku_sousa/index.html)
- [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ084552.html)
- [Getchu](http://www.getchu.com/soft.phtml?id=1010942)

## Releases
### Japanese
- **2011-10-21**: Inyoku Sousa ~Kyoushitsu de no Seiyoku Jikken~ Package Edition - [Official website](https://web.archive.org/web/20231002213926/https://softhouse-seal.com/product/052-inyoku_sousa/index.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=16080), [Getchu](http://www.getchu.com/soft.phtml?id=721679)
- **2011-10-21**: Inyoku Sousa ~Kyoushitsu de no Seiyoku Jikken~ Download Edition - [Official website](http://softhouse-seal.com/product/052-inyoku_sousa/index.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=16080), [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ084552.html), [Gyutto](https://gyutto.com/i/item68986), [Gyutto](https://gyutto.com/i/item68349), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0058709/), [DL.Getchu](http://dl.getchu.com/i/item14733), [DMM](https://www.dmm.co.jp/dc/doujin/-/detail/=/cid=d_041910/), [DMM](https://dlsoft.dmm.co.jp/detail/high_0058/)
- **2014-01-17**: softhouse-seal Pack Vol.2 - [Official website](http://softhouse-seal.softstore.jp/i/item115771), [Gyutto](https://gyutto.com/i/item115771)
- **2015-05-29**: Tsuyu Daku Niku Benki Pack - [Getchu](http://www.getchu.com/soft.phtml?id=853423)
- **2015-12-25**: softhouse-seal Nukige 100-pon Ultimate Pack - Deluxe Edition - [Official website](http://softhouse-seal.com/product/100pon-set/index.html), [Getchu](http://www.getchu.com/soft.phtml?id=876808), [DMM](https://www.dmm.co.jp/mono/pcgame/-/detail/=/cid=1471sea139/)
- **2015-12-25**: Inyoku Sousa ~Kyoushitsu de no Seiyoku Jikken~ Outlet Edition - [Official website](http://softhouse-seal.com/product/052-inyoku_sousa/index.html), [Getchu](http://www.getchu.com/soft.phtml?id=879623)
- **2015-12-25**: softhouse-seal Doon! to 100-pon Set - [DMM](https://dlsoft.dmm.co.jp/detail/high_0138pack/)
- **2015-12-25**: softhouse-seal Nukige 100-pon Ultimate Pack - Compact Edition - [Official website](http://softhouse-seal.com/product/100pon-set/index.html), [Getchu](http://www.getchu.com/soft.phtml?id=876807)
- **2016-01-16**: In'yoku Sousa ~Kyoushitsu de no Seiyoku Jikken~
- **2018-07-27**: softhouse-seal Nukige 100-pon Ultimate Pack - Outlet Edition - [Official website](http://softhouse-seal.com/product/100pon-set/index.html), [Getchu](http://www.getchu.com/soft.phtml?id=1010942)

## Tags
ADV, Completely Avoidable Rape, Multiple Endings, Ojousama Heroine, Nukige, Bondage, Confinement, Villainous Protagonist, Group Sex of One Female and Several Males, Harem Ending, Sex Involving Drugs, Tsundere Heroine, Group Sex of Multiple Females and Males, Emotionless Heroine, Sexual Devices, Defloration, Anal Penetration, Only Virgin Heroines, Scientist Protagonist, Intercrural Sex, Multiple Penetration, Bukkake, Clothing ON/OFF, Erotic Spanking, Gang Rape, Female Ejaculation, Poor Heroine, Hairjob, Heroine with Big Breasts

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---
*View the full details at [pinovel.net/v8011](https://pinovel.net/v8011).*

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