---
title: "Imouto Chu☆ #01 Sunao Imouto no Shou"
description: "The protagonist Onii Tomoyasu is a fairly ordinary college student. However, because of his name he has received a certain nickname since long ago : \"Onii-chan\""
image: "https://t.vndb.org/cv/21/16721.jpg"
---

# Imouto Chu☆ #01 Sunao Imouto no Shou

![Imouto Chu☆ #01 Sunao Imouto no Shou](https://t.vndb.org/cv/21/16721.jpg)

**Alternative Title:** 妹CHU☆ ＃01素直いもうとの章

**Developer:** SUKARADOG

**Release date:** Jul 12, 2013

**Platform:** Windows

**Language:** Japanese

**Rating:** 5.5/10 (11 votes)

## Description
The protagonist Onii Tomoyasu is a fairly ordinary college student. However, because of his name he has received a certain nickname since long ago : "Onii-chan". Thanks to that he has been called that way every day by both people younger and older than him ever since elementary school. That's how he's been called "Onii-chan" for 22 years despite having no actual younger sister.

And one day, when he turned around after hearing "Onii-chan" once again, he found a sole girl looking at him. The girl (Sakuranomori Fumitsuki) told him she is his half-sister. While our protagonist is still surprised at the sudden appearance of a sister, she continues her story and asks him to come over to their house. She came to convince him to help her sisters. She tells him their father's behavior caused them to become distrustful of males. And when he asked her what he should do in particular, she answered... "Please have sex with them".

[Translated from [Getchu](http://www.getchu.com/soft.phtml?id=779058)]

## Characters
### Onii Tomoyasu (御兄 知安)
- **Gender:** Male
- **Aliases:** Onii-chan, お兄ちゃん
- **Role:** University Student, Half-brother

### Sakuranomori Shiori (佐倉守 詩織)
- **Gender:** Female
- **Hair:** Brown, Short, Braid
- **Body:** Teen, Slim, Pale
- **Clothes:** School Uniform, Hair Ribbon, Knee-high Socks, Maid's Dress, Hairpin, Naked Apron, Maid's Headdress
- **Engages in:** Cooking, Cleaning, Cosplay
- **Eyes:** Blue, Tareme
- **Personality:** Shy, Friendly, Kind, Assertive
- **Role:** Half-sister, Middle Sister
- **Voiced by:** Nishino Korone

### Sakuranomori Fumitsuki (佐倉守 文月)
- **Gender:** Female
- **Hair:** Violet, Long
- **Body:** Teen, Slim, Pale
- **Eyes:** Violet, Tareme
- **Clothes:** Dress, Hair Flower
- **Personality:** Friendly, Energetic
- **Role:** Older Sister, Half-sister
- **Engages in:** Not Sexually Involved

### Sakuranomori Utau (佐倉守 歌雨)
- **Gender:** Female
- **Hair:** Blond, Waist Length+
- **Body:** Slim, Pale, Kid, Fang
- **Clothes:** School Uniform, Sport Bloomers, Knee-high Socks, Thigh-high Stockings, Hair Flower, Pendant Necklace, Old Type School Swimsuit
- **Personality:** Kuudere, Puffy
- **Eyes:** Tsurime, Teal
- **Role:** Younger Sister, Half-sister
- **Voiced by:** Kusayanagi Junko

## Shops
- [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ007834.html)
- [Getchu](http://www.getchu.com/soft.phtml?id=779058)

## Releases
### Japanese
- **2013-07-12**: Imouto Chu☆ #01 Sunao Imouto no Shou - [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=19278), [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ007834.html), [Gyutto](https://gyutto.com/i/item107601), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0085287/), [Getchu](http://www.getchu.com/soft.phtml?id=779058), [DL.Getchu](http://dl.getchu.com/i/item1004400)

## Tags
ADV, Blood-related Brother/Sister Incest, Male Protagonist, Single Ending, Nukige, Bondage, Only a Single Heroine, Early Sexual Content, Under the Same Roof, Other Perspectives, Vibrators, Defloration, Side Portraits, Anal Penetration, Only Virgin Heroines, Wake-up Sex, Missionary Position, Sixty-nine, Sounds of Copulation, Naked Heroine with Apron, University Student Protagonist, Cunnilingus, Sexual Innuendo, Doggy Style, Few Choices, Naked Sprites, Sexual Roleplay, Meaningless Choices, Fingering, Anal Toys, Only Protagonist's Sisters as Heroine(s), Sitting Sex, Butterfly, Only Younger Heroines, Anal Sex, Only Blood-related Heroines, Protagonist's Younger Sister as a Heroine, Protagonist's Half-sister as a Heroine

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---
*View the full details at [pinovel.net/v12937](https://pinovel.net/v12937).*

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