---
title: "Soushinjutsu Gaiden ~Ayakawa Hakase no Hentai Jikenbo~"
description: "The main character, Hajime, has a somewhat uneventful life, until he catch the eye of Haruki Ayakawa, another student, a bit on the crazy side, that will throw "
image: "https://t.vndb.org/cv/37/25837.jpg"
---

# Soushinjutsu Gaiden ~Ayakawa Hakase no Hentai Jikenbo~

![Soushinjutsu Gaiden ~Ayakawa Hakase no Hentai Jikenbo~](https://t.vndb.org/cv/37/25837.jpg)

**Alternative Title:** 操心術 外伝 ～綾河博士のHENTAI事件簿～

**Developer:** Studio Jaren

**Release date:** Jun 26, 2015

**Platform:** Windows

**Language:** Japanese, English

**Rating:** 7.2/10 (40 votes)

## Description
The main character, Hajime, has a somewhat uneventful life, until he catch the eye of Haruki Ayakawa, another student, a bit on the crazy side, that will throw him in the world of mind-controlling.
Unless he makes a wrong choice that bring him back to a boring life, he will go further and further in this world.

## Characters
### Kinomoto Hajime (季元 ハジメ)
- **Gender:** Male
- **Hair:** Brown
- **Role:** Student
- **Engages in:** Hypnotism
- **Subject of:** Hypnotism

### Ayakawa Haruki (綾河 春生)
- **Gender:** Female
- **Hair:** Waist Length+, Orange
- **Body:** Teen, Slim, Pale
- **Clothes:** School Uniform, Pantyhose
- **Eyes:** Amber
- **Subject of:** Mind Control
- **Engages in:** Mind Control
- **Role:** High School Student
- **Personality:** Genius, Eccentric
- **Voiced by:** Kanematsu Yuka

### Nakaoka Sayaka (中岡 清夏)
- **Gender:** Female
- **Hair:** Pink, Short
- **Body:** Teen, Slim, Pale
- **Clothes:** School Uniform, Knee-high Socks
- **Eyes:** Green
- **Subject of:** Mind Control
- **Role:** High School Student
- **Voiced by:** Azuki Neru

### Sanri Akiho (山里 秋穂)
- **Gender:** Female
- **Hair:** Violet
- **Eyes:** Blue
- **Body:** Adult
- **Clothes:** Glasses
- **Subject of:** Mind Control
- **Role:** Teacher
- **Voiced by:** Momozono Kaoru

### Tomikuma Fuyu (富隈 冬紬)
- **Gender:** Female
- **Hair:** White, Twin Tails, Long
- **Body:** Teen, Slim, Pale
- **Clothes:** School Uniform, Thigh-high Stockings, Ribbon Hair Tie
- **Eyes:** Blue
- **Subject of:** Mind Control
- **Engages in:** Mind Control
- **Role:** High School Student, Member of a Sect
- **Voiced by:** Azuma Karin

## Shops
- [Official Website](http://www.studio-jyaren.jp/soushinjutsugaiden/)
- [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ009307.html)
- [Getchu](http://www.getchu.com/soft.phtml?id=852468)

## Releases
### Japanese
- **2015-06-04**: Soushinjutsu Gaiden ~Ayakawa Hakase no Hentai Jikenbo~ Trial Edition - [Official website](http://www.studio-jyaren.jp/soushinjutsugaiden/)
- **2015-06-26**: Soushinjutsu Gaiden ~Ayakawa Hakase no Hentai Jikenbo~ Package Edition - [Official website](http://www.studio-jyaren.jp/soushinjutsugaiden/), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=21771), [Getchu](http://www.getchu.com/soft.phtml?id=852468)
- **2015-07-31**: Soushinjutsu Gaiden ~Ayakawa Hakase no Hentai Jikenbo~ Download Edition - [Official website](http://www.studio-jyaren.jp/soushinjutsugaiden/), [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ009307.html), [Gyutto](https://gyutto.com/i/item150685), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0118833/), [DL.Getchu](http://dl.getchu.com/i/item1005268), [DMM](https://dlsoft.dmm.co.jp/detail/lwing_0018/)
- **2018-12-21**: Soushinjutsu Complete Pack - Limited Edition - [DMM](https://dlsoft.dmm.co.jp/detail/lwing_0024/)

### English
- **2024-03**: Soushinjutsu Gaiden ~Ayakawa Hakase no Hentai Jikenbo~ - [Official website](https://sugoivisualnovel.up.railway.app/vns/17158)

## Tags
ADV, Male Protagonist, Nukige, Religious Organization, Group Sex of One Male and Several Females, Early Sexual Content, Sexual Harassment, Student Protagonist, Bad Ending(s), Mind Control, Female Ejaculation, Bonus Side Stories, High School Student Heroine, Group Sex of Multiple Females and Males

## More Games from Studio Jaren
- [Soushinjutsu ~P.S.＠4~](https://pinovel.net/v1848)
- [Soushinjutsu 2](https://pinovel.net/v1849)
- [Denpa no Dorei](https://pinovel.net/v2255)
- [Soushinjutsu 3](https://pinovel.net/v2343)
- [Gonin!? ~Pitari to Tekichuu! Kyousei Uranai♪~](https://pinovel.net/v3930)
- [Soushinjutsu Rei](https://pinovel.net/v5482)
- [Soushinjutsu ∞](https://pinovel.net/v10794)
- [Soushinjutsu Gaiden ~Ayakawa Hakase no Hentai Jikenbo~](https://pinovel.net/v17158)
- [Kyonyuu Hitozuma 3P Saimin ~Saimin de Netorasete Itadakimasu!~](https://pinovel.net/v19536)

---
*View the full details at [pinovel.net/v17158](https://pinovel.net/v17158).*

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