---
title: "Hatsujou Switch ~Bishimai ga Saiminjutsu ni Ochita Saki~"
description: "The main character, Matsuri Gen'ya, works as a counselor at St. Luitos Academy. After losing a power struggle at the hospital where he used to work, he was forc"
image: "https://t.vndb.org/cv/70/23070.jpg"
---

# Hatsujou Switch ~Bishimai ga Saiminjutsu ni Ochita Saki~

![Hatsujou Switch ~Bishimai ga Saiminjutsu ni Ochita Saki~](https://t.vndb.org/cv/70/23070.jpg)

**Alternative Title:** 発情スイッチ ～美姉妹が催眠術に堕ちた先～

**Aliases:** Hatsujyou Switch

**Developer:** Lamia

**Release date:** Dec 19, 2014

**Platform:** Windows

**Language:** Japanese

**Rating:** 6.2/10 (75 votes)

## Description
The main character, Matsuri Gen'ya, works as a counselor at St. Luitos Academy. After losing a power struggle at the hospital where he used to work, he was forced out and lost everything. Now, he uses hypnosis to manipulate female students under the guise of counseling. He makes them serve him, assaults them, and vents his frustrations during his boring days. One day, his colleague, a doctor named Sakura, lets slip that late professor Kirihara, whom Gen'ya respected as a mentor, left behind a special "inheritance". The principal is searching for it desperately, but its nature is unknown. Gen'ya decides to investigate by questioning Kirihara's daughters, Megumu and Saki, and extracting more information from Sakura. He's determined to use any means necessary to reclaim what he lost and will not let anyone stand in his way. The curtain rises on his tale of revenge.

## Characters
### Matsuri Gen'ya (摩釣 幻夜)
- **Gender:** Male
- **Clothes:** Glasses
- **Engages in:** Mind Control

### Gouji Sakura (剛司 咲良)
She is a healthcare nurse at Luitos Academy.

She is a caring and supportive older sister type and is adored by the students.

She and the protagonist are like oil and water and have always been at odds with each other.

She seems to be connected to the Principal behind the scenes and seems to know something about the " legacy".

- **Gender:** Female
- **Hair:** Violet, Short
- **Eyes:** Brown
- **Body:** Slim, Pale, Young-adult
- **Clothes:** Thigh-high Boots, Lab Coat
- **Role:** Homosexual, School Nurse
- **Voiced by:** Momozono Kaoru

### Kirihara Megumu (桐原 萌)
[url=/c23355]Saki's[/url] older sister. Megumu has a very serious and stubborn personality. She originally went to another school, but then transferred to Luitos Academy. When she was younger, Megumu used to admire the protagonist, but after her father passed out she started acting coldly towards him.

- **Gender:** Female
- **Hair:** Black, Twin Tails, Waist Length+, Curtained, Parted to Side
- **Body:** Teen, Slim, Pale
- **Clothes:** School Uniform, Pantyhose, Sports Uniform, Ribbon Hair Tie
- **Eyes:** Green
- **Personality:** Tsundere, Serious, Watashi
- **Subject of:** Hypnotism
- **Role:** Full Sister, Schoolmate, High School Student, Half-orphan, Older Sister
- **Voiced by:** Katakura Hina

### Kirihara Saki (桐原 さき)
[url=/c23354]Megumu's[/url] younger sister. A very kind and energetic girl. After their father's death Saki did her best to keep Megumu smiling, and she also started taking care of the household chores.

- **Gender:** Female
- **Hair:** Brown, Twin Tails, Short, V Bangs
- **Body:** Teen, Slim, Pale
- **Personality:** Hard Worker, Kind, Energetic
- **Engages in:** Cooking
- **Eyes:** Green, Tareme
- **Clothes:** Thigh-high Stockings, Clothing with Ribbons, School Swimsuit, Sailor School Uniform, Nekomimi Headband
- **Subject of:** Hypnotism
- **Role:** High School Student, Half-orphan, Younger Sister
- **Voiced by:** Akino Hana

## Shops
- [Official Website](http://lamia.clearrave.co.jp/product/01_ha/home.html)
- [Getchu](http://www.getchu.com/soft.phtml?id=828648)

## Releases
### Japanese
- **2014-12-19**: Hatsujou Switch ~Bishimai ga Saiminjutsu ni Ochita Saki~ Package Edition - [Official website](http://lamia.clearrave.co.jp/product/01_ha/home.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=21097), [Getchu](http://www.getchu.com/soft.phtml?id=828648)
- **2014-12-19**: Hatsujou Switch ~Bishimai ga Saiminjutsu ni Ochita Saki~ Download Edition - [Official website](http://lamia.clearrave.co.jp/product/01_ha/home.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=21097), [DMM](https://dlsoft.dmm.co.jp/detail/clear_0006/)

## Tags
ADV, Lesbian Sex, Rape, Blood-related Sister/Sister Incest, Male Protagonist, Adult Protagonist, Multiple Endings, Bullying, Teacher Heroine, Yandere Heroine, Deredere Heroine, Nukige, Group Sex of One Male and Several Females, Group Sex of One Female and Several Males, Student Heroine, Early Sexual Content, Protagonist with Glasses, Rapist Protagonist, Harem Ending, Revenge, Adult Heroine, Teacher Protagonist, Lesbian Heroine, Erotic Mind Control, Tsundere Heroine, Other Perspectives, Protagonist with Sexual Experience, Vibrators, Protagonist with a Face, Defloration, Only Virgin Heroines, Orphan Heroine, Cosplay, Exhibitionism, Death of Heroine, Mind Control, Twin Blowjob, Triple Blowjob, Ejaculation Forewarner, Cunnilingus, Gang Rape, Female Ejaculation, Ejaculation Choice, School Nurse Heroine, Read Text Marking, Pragmatic Protagonist, Anal Toys, Lesbian NTR, Netorase, Jealousy, Shimaidon Ending, Sprite Viewer, Music Recollection, Heroine Sisters, Heroine Having Sex with Others, Legwear Footjob, Single Footjob, High School Student Heroine, Non-twin Heroine Sisters

## More Games from Lamia
- [Hatsujou Switch ~Bishimai ga Saiminjutsu ni Ochita Saki~](https://pinovel.net/v16089)
- [Erohon o Sutete kara Ani no Yousu ga Okashii](https://pinovel.net/v16372)
- [Trippers. -Kanojo to no Gakuen Seikatsu o Hakai Suru, Ittsuu no Tegami-](https://pinovel.net/v16673)
- [Aitsu ni Choukyou Sareru to Do M na Watashi wa Kanjichau](https://pinovel.net/v18798)

---
*View the full details at [pinovel.net/v16089](https://pinovel.net/v16089).*

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