---
title: "Yousei Hannou"
description: "Your younger sister is a flat-chested girl standing at 130cm. You get aroused by her petite form, and use your meat rod to probe her unexplored pussy!  [Edited "
image: "https://t.vndb.org/cv/14/15214.jpg"
---

# Yousei Hannou

![Yousei Hannou](https://t.vndb.org/cv/14/15214.jpg)

**Alternative Title:** 幼性反応

**Aliases:** Youthful Reactions

**Developer:** Idle Fancy

**Release date:** Feb 2, 2008

**Platform:** Windows, NDS

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

**Rating:** 4.9/10 (10 votes)

## Description
Your younger sister is a flat-chested girl standing at 130cm.
You get aroused by her petite form, and use your meat rod to probe her unexplored pussy!

[Edited from [DLsite English](https://www.dlsite.com/ecchi-eng/work/=/product_id/RE037378.html)]

## Characters
### Yuka (由佳)
- **Gender:** Female
- **Measurements:** Height: 130cm
- **Hair:** Pink, Shoulder-length, Parted to Side, Sidehair
- **Body:** Slim, Pale, Kid
- **Clothes:** Knee-high Socks, Unusual Hair Ornaments, Pleated Skirt
- **Eyes:** Tareme, Cyan
- **Voiced by:** Harukawa Akari

## Shops
- [Official Website](http://idle.sakura.ne.jp/aice/index7.htm)
- [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ037378.html)

## Releases
### Japanese
- **2008-02-02**: Yousei Hannou - Download Edition - [Official website](http://idle.sakura.ne.jp/aice/index7.htm), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=10670), [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ037378.html), [Gyutto](https://gyutto.com/i/item32194), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0017523/), [DMM](https://www.dmm.co.jp/dc/doujin/-/detail/=/cid=d_016531/)
- **2008-03-21**: Yousei Hannou - Package Edition - [Official website](http://idle.sakura.ne.jp/aice/index7.htm)

### Chinese (simplified)
- **2008-05-30**: Youxing Fanying
- **2011-01-24**: Youxing Fanying DS - [Official website](https://web.archive.org/web/20170914000819/http://ljner.blog.163.com/blog/static/12246346920110241844544)

## Tags
ADV, Male Protagonist, Nukige, Only a Single Heroine, Only Loli Heroines, Only Protagonist's Sisters as Heroine(s), Sex Involving Children, Only Younger Heroines, Only Blood-related Heroines, Straight Lolicon, Doggy Style, Vaginal Gaping, Quickie Fix Position, Butterfly, Single Blowjob, Protagonist's Full Sister as a Heroine, Protagonist's Younger Sister as a Heroine, Cowgirl, Reverse Cowgirl, Blood-related Brother/Sister Incest

## More Games from Idle Fancy
- [Injuu Kuma-tan no Gen'ei Vol. 01](https://pinovel.net/v6576)
- [Injuu Kuma-tan no Gen'ei Vol. 02](https://pinovel.net/v11950)
- [Ninshin Injuu Shoujo](https://pinovel.net/v6578)
- [Ninshin Injuu Shoujo  Rei](https://pinovel.net/v6577)
- [Injuu Kuma-tan no Gen'ei Vol. 03](https://pinovel.net/v11952)
- [Yousei Hannou](https://pinovel.net/v11959)
- [Injuu Kuma-tan no Gen'ei Vol. 04](https://pinovel.net/v11954)
- [Real Doll Imouto](https://pinovel.net/v6703)
- [Shokuchuu Kansen](https://pinovel.net/v10612)

---
*View the full details at [pinovel.net/v11959](https://pinovel.net/v11959).*

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```