---
title: "Ore no Imouto no Erosa ga Uchouten de Todomaru Koto o Shiranai"
description: "Read about Ore no Imouto no Erosa ga Uchouten de Todomaru Koto o Shiranai visual novel."
image: "https://t.vndb.org/cv/15/14815.jpg"
---

# Ore no Imouto no Erosa ga Uchouten de Todomaru Koto o Shiranai

![Ore no Imouto no Erosa ga Uchouten de Todomaru Koto o Shiranai](https://t.vndb.org/cv/15/14815.jpg)

**Alternative Title:** オレの妹のエロさが有頂天でとどまる事を知らない

**Aliases:** oreimo

**Developer:** ZERO

**Release date:** Feb 26, 2010

**Platform:** Windows, Android, DVD

**Language:** Japanese

**Rating:** 5.5/10 (26 votes)

## Characters
### Kazunori (和規)
- **Gender:** Male
- **Hair:** Brown, Short
- **Subject of:** Accident, Malevolent Possession
- **Role:** Non-blood-related Brother

### Kirihara Tomoe (桐原 巴)
- **Gender:** Female
- **Hair:** Violet, Odango, Waist Length+, Curtained, Spiky Bangs, Parted in Middle, Sidehair
- **Body:** Teen, Slim, Pale, Big Breast Sizes
- **Clothes:** School Uniform, Glasses, Miko's Dress, Zouri, Sailor School Uniform, Tabi
- **Eyes:** Violet
- **Role:** Cousin, Miko, Tsukkomi, Honor Student
- **Personality:** Serious
- **Voiced by:** Okugawa Kumiko

### Moridaira Hinami (森平 日南美)
- **Gender:** Female
- **Hair:** Blue, Curtained, Short, Parted to Side
- **Body:** Teen, Slim, Pale, Big Breast Sizes
- **Clothes:** School Uniform, Apron, Swimsuit, Sailor School Uniform
- **Role:** Orphan, Full Sister, Non-blood-related Sister, Younger Sister
- **Engages in:** Cooking
- **Eyes:** Blue
- **Personality:** Airhead, Ignorant, Friendly, Kind
- **Voiced by:** Minami Nami

### Moridaira Mahiro (森平 万尋)
- **Gender:** Female
- **Hair:** Blond, Ahoge, Twin Tails, Waist Length+, Curtained, Straight, Parted to Side, Sidehair, Spiky Bun
- **Body:** Teen, Slim, Pale
- **Eyes:** Amber
- **Clothes:** Miniskirt, Thigh-high Stockings, Tank Top, Blouse, Ribbon Hair Tie, Shimapan, Pleated Skirt, Sailor School Uniform, Short Shorts
- **Personality:** Yandere, Spoiled, Stubborn, Atashi
- **Role:** Twin Sister, Younger Sister
- **Engages in:** Murder
- **Voiced by:** mahilo

### Togami Rei (戸上 怜)
- **Gender:** Male
- **Hair:** Blue, Short
- **Engages in:** Cross-dressing
- **Body:** Trap, Teen, Slim, Pale, Androgynous
- **Eyes:** Blue
- **Clothes:** Kimono, Thigh-high Stockings, Maid's Dress, Maid's Headdress
- **Personality:** Secretive, Modern Tsundere, Flustered, Closet Pervert, Opposite Gender Voiced
- **Role:** Full Brother, Classmate, Transfer Student, Actor, Famous, Bisexual
- **Subject of:** Sex Change
- **Voiced by:** Asari

### Higashihara Amane (東原 天音)
- **Gender:** Female
- **Hair:** Green
- **Eyes:** Amber
- **Clothes:** Glasses
- **Personality:** Pervert
- **Role:** Childhood Friend

### Koshitobashi Yuzu (越戸橋 柚子)
- **Gender:** Female
- **Eyes:** Red
- **Role:** Classmate, Ex-girlfriend
- **Hair:** Orange

### Madoka & Mau (円佳＆まう)
- **Gender:** Female
- **Hair:** Red, Waist Length+, Eye Covering
- **Body:** Pale
- **Eyes:** Garnet

## Shops
- [Official Website](http://zero.product.co.jp/products/oreimo/)
- [DLsite](https://www.dlsite.com/appx/work/=/product_id/VJ009787.html)
- [Getchu](http://www.getchu.com/soft.phtml?id=698531)

## Releases
### Japanese
- **2010-02-26**: Ore no Imouto no Erosa ga Uchouten de Todomaru Koto o Shiranai - [Official website](http://zero.product.co.jp/products/oreimo/index.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=13567), [Getchu](http://www.getchu.com/soft.phtml?id=675231)
- **2010-11-26**: Ore no Imouto no Erosa ga Uchouten de Todomaru Koto o Shiranai - Download Edition - [Official website](http://zero.product.co.jp/products/oreimo/), [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ005193.html), [Gyutto](https://gyutto.com/i/item47789), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0047105/), [DL.Getchu](http://dl.getchu.com/i/item1002776), [DMM](https://dlsoft.dmm.co.jp/detail/vsat_0091/)
- **2011-02-17**: Ore no Imouto no Erosa ga Uchouten de Todomaru Koto o Shiranai - DVDPG - [Official website](https://web.archive.org/web/20110501034215/http://aicherry.com/aicherryhp/contents/aicherry/jacket/aicdv0268/aicdv0268.html), [Getchu](http://www.getchu.com/soft.phtml?id=698531), [DMM](https://www.dmm.co.jp/mono/anime/-/detail/=/cid=1481aicdv0268/)
- **2016-02-12**: Ore no Imouto no Erosa ga Uchouten de Todomaru Koto o Shiranai - [DLsite](https://www.dlsite.com/appx/work/=/product_id/VJ009787.html)

## Tags
ADV, Boy x Boy Romance, Both Male and Female Love Interests, Male on Male Sex, Brother/Sister Incest, Male Protagonist, Multiple Endings, Family Life Comedy, Airhead Heroine, Heroine with Glasses, Yandere Heroine, Modern Tsundere Heroine, Homosexual Support Character, Twin Sisters as Heroines, Ghost, Student Heroine, Trap Heroine, Cousin Incest, Unlockable Routes, Big Breast Sizes Heroine, Student Protagonist, Unavoidable Heroine Rape, Arrogant Heroine, Protagonist with Sexual Experience, Emotionless Heroine, Protagonist's Twin as a Heroine, Short Sexual Scenes, Death of Protagonist, Twincest, Title Parody, Only One Bad Ending, Heroine Rape by Others, Heroine with Big Breasts

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- [Ore no Imouto no Erosa ga Uchouten de Todomaru Koto o Shiranai](https://pinovel.net/v3497)

---
*View the full details at [pinovel.net/v3497](https://pinovel.net/v3497).*

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