---
title: "Onii-chan!! Shasei no Kanri wa Imouto ni Makasete!!"
description: "One day, Shimizu Seiya wakes up in a hospital bed, from his little sisters he learns that he was carried there by an ambulance. As he has no memory of what happ"
image: "https://t.vndb.org/cv/05/27405.jpg"
---

# Onii-chan!! Shasei no Kanri wa Imouto ni Makasete!!

![Onii-chan!! Shasei no Kanri wa Imouto ni Makasete!!](https://t.vndb.org/cv/05/27405.jpg)

**Alternative Title:** お兄ちゃん!! 射精の管理は妹に任せて!!

**Developer:** Atelier Kaguya TEAM Gassa-Q

**Release date:** Dec 18, 2015

**Platform:** Windows

**Language:** Japanese

**Rating:** 7.0/10 (58 votes)

## Description
One day, Shimizu Seiya wakes up in a hospital bed, from his little sisters he learns that he was carried there by an ambulance. As he has no memory of what happened, he asks his little sisters about it, and they answer...

"Onii-chan, you had a technobreak..."

A technobreak, in other words his heart malfunctioned because of a too long masturbation period, he lost consciousness and was found by his little sisters which saved his life. But the day before he was supposed to be just doing university assignments and he had no memory or intention to masturbate...!

Apparently the reason for this was the high amount of energy drinks he drank in order to work overnight. The drink was studied in a laboratory and found to have included substances forbidden by law, and currently was being recovered by police. The drink caused Seiya to become extremely aroused and was unable to to stop masturbating, he continued that overnight until losing consciousness. Apparently the symptoms would eventually disappear and his body will go back to normal. Meanwhile Seiya felt relieved, his little sister gave him a certain item.

"It's a chastity belt, Onii-chan."

While embarrassed, his little sister continued.

"At this rate you won't be able to stop to stop masturbating, so..."

"We have decided that we will manage your ejaculation!"

These words astounded Seiya and so, his days of having his ejaculation controlled by his cute little sisters began.

## Characters
### Shimizu Seiya (清水 誠耶)
- **Gender:** Male
- **Hair:** Black, Short, Straight
- **Body:** Slim, Pale, Young-adult
- **Engages in:** Cooking
- **Personality:** Ore, Reserved, Friendly, Low Self-esteem, Kind, Whimsical
- **Role:** Full Brother, Boyfriend, Non-blood-related Brother, University Student, Older Brother
- **Subject of:** Hospitalization, Being Drugged, Fainting
- **Clothes:** Chastity Belt

### Kanzaki Mihiro (門崎 海央)
- **Gender:** Female
- **Hair:** Long, Waist Length+, V Bangs, Orange, Sidehair
- **Body:** Teen, Slim, Pale, Huge Breasts
- **Clothes:** School Uniform, Necklace, Shirt, Miniskirt, Gyaru, Off-The-Shoulder Sweater
- **Eyes:** Amber
- **Personality:** Carefree, Confident, Emotional, Assertive, Observant
- **Role:** Girlfriend, Schoolmate, High School Student
- **Engages in:** Teasing, Seduction
- **Voiced by:** Tezuka Ryouko

### Manaka Mamori (真中 まもり)
- **Gender:** Female
- **Hair:** Blond, Pink, Ahoge, Shoulder-length, Short, V Bangs, Sidehair
- **Body:** Slim, Pale, Big Breasts
- **Clothes:** Shirt, Miniskirt, Sailor School Uniform
- **Personality:** Shy, Kind
- **Role:** Girlfriend, Classmate, High School Student, Sexual Submissive, Imouto Act
- **Eyes:** Pink, Tareme
- **Voiced by:** Shibuya Hime

### Shimizu Aina (清水 愛菜)
- **Gender:** Female
- **Hair:** Blue, Ponytail, Waist Length+, Straight, Side Tail
- **Body:** Teen, Slim, Pale, Big Breasts
- **Engages in:** Cooking, Reading
- **Clothes:** Miniskirt, Tank Top, Nurse Uniform, Ribbon Hair Accessory, Torn Clothing, Waitstaff Uniform
- **Personality:** Friendly, Kind, Brother Complex, Jealous
- **Role:** Non-blood-related Sister, High School Student, Younger Sister, Part-time Worker
- **Eyes:** Teal
- **Voiced by:** Himekawa Airi

### Shimizu Kyouka (清水 杏果)
- **Gender:** Female
- **Hair:** Brown, Ahoge, Twin Tails, Long, Wavy, Curtained, Parted to Side, Sidehair, Half Updo
- **Body:** Teen, Slim, Pale, Big Breasts
- **Clothes:** School Uniform, Shirt, Miniskirt, Knee-high Socks, Bikini, Ribbon Tie, Body Ribbon, Decorative Belt, Nightgown
- **Engages in:** Cooking
- **Personality:** Modern Tsundere, Friendly, Serious, Sly, Emotional
- **Role:** Full Sister, Girlfriend, Non-blood-related Sister, Classmate, High School Student, Younger Sister, Older Sister
- **Eyes:** Tsurime, Teal
- **Voiced by:** Imaya Minami

## Shops
- [Official Website](http://www.a-kaguya.com/products_GQ/imoutokanri/imoutokanri.html)
- [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ009999.html)

## Releases
### Japanese
- **2015-12-04**: Onii-chan!! Shasei no Kanri wa Imouto ni Makasete!! - Trial Edition - [Official website](http://www.a-kaguya.com/products_GQ/imoutokanri/imoutokanri_download.html)
- **2015-12-18**: Onii-chan!! Shasei no Kanri wa Imouto ni Makasete!! - Package Edition - [Official website](http://www.a-kaguya.com/products_GQ/imoutokanri/imoutokanri.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=22629)
- **2015-12-18**: Onii-chan!! Shasei no Kanri wa Imouto ni Makasete!! - Download Edition - [Official website](http://www.a-kaguya.com/products_GQ/imoutokanri/imoutokanri.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=22629), [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ009999.html), [Gyutto](https://gyutto.com/i/item165182), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0132549/), [DL.Getchu](http://dl.getchu.com/i/item1005490), [DMM](https://dlsoft.dmm.co.jp/detail/cveaa_0014/)

## Tags
ADV, Blood-related Brother/Sister Incest, Non-blood-related Brother/Sister Incest, Male Protagonist, Multiple Endings, Modern Tsundere Heroine, Nukige, Bondage, Protagonist's Sister as a Heroine, Protagonist's Blood-related Sister as a Heroine, Protagonist's Non-blood-related Sister as a Heroine, Group Sex of One Male and Several Females, Harem Ending, Big Breast Sizes Heroine, Student Protagonist, Other Perspectives, Urination Fetish, Vibrators, Defloration, Sex in Public Places, Anal Penetration, Footjob, Boobjob, Only Virgin Heroines, Cosplay, Wake-up Sex, Clothed Female Naked Male, Missionary Position, Sixty-nine, Sounds of Copulation, Blowjob, Handjob, Intercrural Sex, Multiple Penetration, Bukkake, Masturbation, University Student Protagonist, Cunnilingus, Brocon Heroine, Doggy Style, Female Ejaculation, Ejaculation Choice, Full Chastity Belt, Outdoor Sex, Naked Sprites, Deepthroat, Fingering, Anal Toys, Excessive Semen, Cowgirl, Reverse Cowgirl, Sex in Water, Standing Sex, Sitting Sex, Spoons, Piledriver, Discreet Sex, Production of Pornography (Amateur), Bathroom Sex, Mutual Masturbation, Love Hotel, Background Moans, Quadruple+ Blowjob, Twin Boobjob, Facesitting, Sexual Blindfold, Reverse Missionary, Quickie Fix Position, Gyaru Heroine, Sex on Toilet, Sex on a Beach, Vaginal Fingering, High School Student Heroine, Sex with Protagonist Only, Heroine with Huge Breasts, Heroine with Big Breasts

## More Games from Atelier Kaguya TEAM Gassa-Q
- [Sperman ~Sono Fukushuu no Maku o Yabure!!~](https://pinovel.net/v11431)
- [Tamahaji! -Tamatama Hajikeru Imouto-tachi-](https://pinovel.net/v12565)
- [Tokonatsu Shimai Sand](https://pinovel.net/v14392)
- [Mazomai ~M na Imouto no Ecchi na Onedari~](https://pinovel.net/v15761)
- [Aku Yome! Akuma na Yome ni Shiborareru](https://pinovel.net/v17002)
- [Onii-chan!! Shasei no Kanri wa Imouto ni Makasete!!](https://pinovel.net/v18395)
- [Koakuma Hatsuiku Chu~!](https://pinovel.net/v19495)
- [Toshishita Gentei Nuki x2 Share-house ~Shiborare Kyoudou Seikatsu~](https://pinovel.net/v20663)
- [Namepu!](https://pinovel.net/v21771)
- [Sispaco ~H na Amakara 4 Shimai~](https://pinovel.net/v23069)
- [Kangoku ~Kairaku Kousei Project~](https://pinovel.net/v24854)

---
*View the full details at [pinovel.net/v18395](https://pinovel.net/v18395).*

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