---
title: "Onii-chan Daisuki!"
description: "Osamu is the protagonist of the story, and he always has a sister complex. He has taken care of his little sister, Rio, from the moment she was born, as well as"
image: "https://t.vndb.org/cv/75/31775.jpg"
---

# Onii-chan Daisuki!

![Onii-chan Daisuki!](https://t.vndb.org/cv/75/31775.jpg)

**Alternative Title:** お兄ちゃん大好き！

**Developer:** Tanuki Soft

**Release date:** Jul 28, 2017

**Platform:** Windows

**Language:** Japanese

**Rating:** 7.4/10 (137 votes)

## Description
Osamu is the protagonist of the story, and he always has a sister complex. He has taken care of his little sister, Rio, from the moment she was born, as well as his other sister, Mio, since she joined his family from his father’s remarriage. Every day he was on cloud nine being together with his two younger sisters.

Finally came the day when they started attending the nearby school that he also went to. When he saw them in their school uniforms for the first time, his heart started beating faster as he gazed upon their slightly matured figures. Could it be love? Yes, he had begun to have a (sexual) affection for them.

[From [Hau~ Omochikaeri!](https://omochikaeri.wordpress.com/2017/07/19/july-2017-eroge-releases/)]

## Characters
### Wataya Osamu (綿谷 理)
- **Gender:** Male
- **Hair:** Short
- **Eyes:** Brown, Hidden
- **Role:** Full Brother, Non-blood-related Brother, Older Brother
- **Personality:** Sister Complex

### Kinoshita Yuuna (木下 夕凪)
- **Gender:** Female
- **Measurements:** Height: 154cm, Weight: 45kg, Bust-Waist-Hips: 80-58-81cm
- **Hair:** Brown, Ponytail, Long, Blunt Bangs
- **Eyes:** Green
- **Personality:** Friendly
- **Role:** Friend
- **Subject of:** Pregnancy, Marriage Proposal
- **Clothes:** Hair Tie
- **Body:** Medium Breasts
- **Voiced by:** Tsukihoshi Yuna

### Wataya Mio (綿谷 美桜)
The step sister of the protagonist and Rio. Her mother married their father.

- **Gender:** Female
- **Measurements:** Height: 151cm, Weight: 42kg, Bust-Waist-Hips: 77-57-80cm, B cup
- **Hair:** Violet, Long, Side Tail
- **Body:** Slim, Pale, Small Breasts
- **Clothes:** School Uniform, Swimsuit, Hairpin
- **Personality:** Hard Worker, Kind, Curious, Assertive, Desu
- **Eyes:** Amber
- **Role:** Step Sister
- **Subject of:** Pregnancy
- **Voiced by:** Karasuma Sora

### Wataya Rio (綿谷 里桜)
The protagonist blood sisier

- **Gender:** Female
- **Measurements:** Height: 150cm, Weight: 40kg, Bust-Waist-Hips: 72-55-74cm
- **Hair:** Blond, Shoulder-length
- **Clothes:** School Uniform, Swimsuit
- **Eyes:** Blue
- **Role:** Full Sister, Younger Sister
- **Subject of:** Pregnancy
- **Personality:** Stubborn, Brother Complex, Sharp-tongued
- **Items:** Book
- **Body:** Small Breasts
- **Voiced by:** Izumi Kaede

## Shops
- [Official Website](http://www.tanuki-soft.jp/products/oniicyandaisuki/)
- [Getchu](http://www.getchu.com/soft.phtml?id=1210235)

## Releases
### Japanese
- **2017-07-28**: Onii-chan Daisuki! - [Official website](http://www.tanuki-soft.jp/products/oniicyandaisuki/), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=24312), [Getchu](http://www.getchu.com/soft.phtml?id=928861)
- **2017-09-29**: Onii-chan Daisuki! - Download Edition - [Official website](http://www.tanuki-soft.jp/products/oniicyandaisuki/), [DMM](https://dlsoft.dmm.co.jp/detail/views_0552/)
- **2023-04-28**: Nukicolle vol.34 - Onii-chan Daisuki! - [Official website](http://www.tanuki-soft.jp/products/oniicyandaisuki/), [Getchu](http://www.getchu.com/soft.phtml?id=1210235)

## Tags
ADV, Brother/Sister Incest, Blood-related Brother/Sister Incest, Non-blood-related Brother/Sister Incest, Male Protagonist, Loli Heroine, Nameable Protagonist, Nukige, Protagonist's Non-blood-related Sister as a Heroine, High Sexual Content, Group Sex of One Male and Several Females, Pregnant Sex, Perverted Protagonist, Defloration, Only Virgin Heroines, Impregnation, Inbreeding, Brocon Heroine, Panchira, Only Loli Heroines, Social Networking Service, Sex with Sleepers, Siscon Protagonist, Highly Animated Sprites, Middle School Student Heroine, Changeable Font, Legwear Footjob, Single Footjob, Only Younger Heroines, Sixty-nine, Single Blowjob, Single Handjob, Reverse Cowgirl, Pissing, Missionary Position, Doggy Style, Ponytail Heroine, Vaginal Masturbation, Pregnancy Good Ending, Single Boobjob, Triple Blowjob, Straight Lolicon, Heroine with Swimsuits, Anal Sex, Intercrural Sex, Cunnilingus, Love Hotel, Sexual Blindfold, Reverse Missionary, Anilingus, Vaginal Gaping, Condoms, Pissing on Others, Cowgirl, Sex on Toilet, Vaginal Fingering, Bukkake, Bathroom Sex, Nursing Handjob, Anal Object Insertion, Lotion Play, Feet Licking, Butterfly, Anal Fingering, Adult Breast Sucking, Quickie Fix Position, Protagonist's Younger Sister as a Heroine, Protagonist's Full Sister as a Heroine

## More Games from Tanuki Soft
- [Mei Shoujo](https://pinovel.net/v1269)
- [Bishoujo](https://pinovel.net/v2713)
- [Shoukoujo](https://pinovel.net/v4883)
- [Mebae](https://pinovel.net/v7748)
- [Tonari no Puu-san](https://pinovel.net/v10928)
- [Shoujo Kyouiku](https://pinovel.net/v13444)
- [Shoujo Ramune](https://pinovel.net/v16511)
- [Onii-chan Daisuki!](https://pinovel.net/v20106)

---
*View the full details at [pinovel.net/v20106](https://pinovel.net/v20106).*

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```