---
title: "Imouto to Sono Yuujin ga Ero Sugite Ore no Kokan ga Yabai"
description: "After becoming a tutor for his sister Miu and her friend Riko, Kanata quickly discovers that he is much more popular than he makes himself out to be."
image: "https://t.vndb.org/cv/28/20128.jpg"
---

# Imouto to Sono Yuujin ga Ero Sugite Ore no Kokan ga Yabai

![Imouto to Sono Yuujin ga Ero Sugite Ore no Kokan ga Yabai](https://t.vndb.org/cv/28/20128.jpg)

**Alternative Title:** 妹とその友人がエロすぎて俺の股間がヤバイ

**Developer:** Pachipachi Soft

**Release date:** May 30, 2014

**Platform:** Windows, Android, DVD

**Language:** Indonesian, Japanese, Chinese (simplified)

**Rating:** 6.3/10 (81 votes)

## Description
After becoming a tutor for his sister Miu and her friend Riko, Kanata quickly discovers that he is much more popular than he makes himself out to be.

## Characters
### Miu (海羽)
Tsundere sister.

- **Gender:** Female
- **Measurements:** Height: 150cm, Bust-Waist-Hips: 75-58-80cm, A cup
- **Hair:** Black, Hime Cut, Long, Straight, Sidehair
- **Body:** Teen, Slim, Pale
- **Clothes:** School Uniform, Thigh-high Stockings
- **Eyes:** Violet
- **Personality:** Tsundere
- **Role:** Full Sister, High School Student, Younger Sister
- **Voiced by:** Himari

### Riko (莉子)
Miu's best friend.

- **Gender:** Female
- **Measurements:** Height: 160cm, Bust-Waist-Hips: 98-63-87cm, F cup
- **Hair:** Twin Tails, Shoulder-length, Orange, Sidehair
- **Body:** Teen, Slim, Pale
- **Clothes:** School Uniform, Hakama, Garter Belt Stockings, Hair Tie, Traditional Bloomers
- **Eyes:** Green
- **Role:** School Archery Club Member, High School Student
- **Personality:** Third Person, Watashi
- **Voiced by:** Sakura Momoka

## Shops
- [Official Website](http://pachi2.com/pro_imoyu.php)
- [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ009451.html)
- [Getchu](http://www.getchu.com/soft.phtml?id=842906)

## Releases
### Japanese
- **2014-04-16**: Imouto to Sono Yuujin ga Ero Sugite Ore no Kokan ga Yabai - Trial Edition - [Official website](http://pachi2.com/pro_imoyu.php#imoyu_download)
- **2014-05-30**: Imouto to Sono Yuujin ga Ero Sugite Ore no Kokan ga Yabai - Package Edition - [Official website](http://pachi2.com/pro_imoyu.php), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=20353), [Getchu](http://www.getchu.com/soft.phtml?id=805399)
- **2014-05-30**: Imouto to Sono Yuujin ga Ero Sugite Ore no Kokan ga Yabai - Download Edition - [Official website](http://pachi2.com/pro_imoyu.php), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=20353), [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ009451.html), [Gyutto](https://gyutto.com/i/item159382), [DL.Getchu](http://dl.getchu.com/i/item1005389), [DMM](https://dlsoft.dmm.co.jp/detail/sdpeps_0001/)
- **2014-05-30**: Imouto to Sono Yuujin ga Ero Sugite Ore no Kokan ga Yabai - Android Edition - [Official website](http://pachi2.com/pro_imoyu.php)
- **2015-02-13**: Imouto to Sono Yuujin ga Ero Sugite Ore no Kokan ga Yabai - DVDPG - [Getchu](http://www.getchu.com/soft.phtml?id=842906), [DMM](https://www.dmm.co.jp/mono/anime/-/detail/=/cid=dply034/)

### Chinese (simplified)
- **2016-08-19**: Meimei he Pengyou yu Wo de Richang - [Official website](http://tieba.baidu.com/p/4739867231)

### Indonesian
- **2026-08-12**: Adikku dan temannya sangat seksi - [Official website](https://takatranslation.blogspot.com/2026/08/release-56.html)

## Tags
ADV, High School, Blood-related Brother/Sister Incest, Male Protagonist, Early Branching Plot, Nukige, High Sexual Content, Student Heroine, Early Sexual Content, Under the Same Roof, Heroine with Zettai Ryouiki, Chikan, Student Protagonist, Tsundere Heroine, Vibrators, Defloration, Side Portraits, Only Virgin Heroines, Missionary Position, Sixty-nine, Sounds of Copulation, Cunnilingus, Doggy Style, Ejaculation Choice, Sex with Sleepers, Scenario Selection, Cowgirl, Sitting Sex, Bathroom Sex, High School Student Heroine, Protagonist's Younger Sister as a Heroine, Tutor Protagonist, Protagonist's Full Sister as a Heroine

## More Games from Pachipachi Soft
- [Imouto to Sono Yuujin ga Ero Sugite Ore no Kokan ga Yabai](https://pinovel.net/v14881)
- [Ero ★ Lab ~Jikken Suru to Doushitemo Eroi Kekka ni Shika Naranai Kenkyuubu~](https://pinovel.net/v15387)
- [Oshioki Namaiki Gyaru ~Eroi Oshioki o Shitara Jibun kara Ecchi o Motomete Kita~](https://pinovel.net/v17638)
- [Yandere Pakorare Days](https://pinovel.net/v21155)
- [Enjo Kousai ~Arisa no Jouji~](https://pinovel.net/v25707)
- [Yome no Imouto to H na Kankei ni Natte Yabai!?](https://pinovel.net/v28332)
- [Seisokei Futago Idol no Ura Jijou ~Ore Dake ga Shiru Midara na Futari~](https://pinovel.net/v37851)

---
*View the full details at [pinovel.net/v14881](https://pinovel.net/v14881).*

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```