---
title: "Mai Sex"
description: "One night, our main character sneaks into the room of his sleeping little sister Yui for a bit of fun...once you stray from the path, there's no going back.  Th"
image: "https://t.vndb.org/cv/27/124827.jpg"
---

# Mai Sex

![Mai Sex](https://t.vndb.org/cv/27/124827.jpg)

**Alternative Title:** 妹SEX

**Aliases:** SISTER SEX, My Sex

**Developer:** Jangari Koubou

**Release date:** Aug 10, 2008

**Platform:** Windows

**Language:** Japanese

## Description
One night, our main character sneaks into the room of his sleeping little sister Yui for a bit of fun...once you stray from the path, there's no going back.

This is an incestual story that unfolds in a love nest. Their love story is one which cannot be forgiven by anyone.

[From [DLsite English](http://www.dlsite.com/ecchi-eng/work/=/product_id/RE041793.html)]

## Characters
### Boku (僕)
- **Gender:** Male
- **Hair:** Brown, Short, Straight
- **Eyes:** Brown
- **Body:** Teen, Slim, Pale
- **Personality:** Boku, Reserved, Relaxed, Smart, Sister Complex
- **Role:** Full Brother, Boyfriend, High School Student, No Name, Older Brother, Living Alone
- **Engages in:** Long Distance Relationship

### Yui (唯)
[url=/c116349]Protagonist[/url]'s sister, calls her brother "Onii-chan". She is two years below him.

- **Gender:** Female
- **Hair:** Short, Orange
- **Body:** Teen, Slim, Pale, Medium Breasts
- **Eyes:** Green
- **Role:** Full Sister, Girlfriend, Middle School Student, Younger Sister
- **Personality:** Energetic, Brother Complex, Third Person, Cheerful
- **Engages in:** Long Distance Relationship
- **Voiced by:** Akatsuki Kotone

## Shops
- [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ041793.html)

## Releases
### Japanese
- **2008-08-10**: Mai SEX - Download Edition - [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=11502), [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ041793.html)
- **2008-10-03**: Mai SEX - Package Edition

## Tags
ADV, Male Protagonist, Nukige, Brocon Heroine, Siscon Protagonist, Only Protagonist's Sisters as Heroine(s), Only Younger Heroines, Only Blood-related Heroines

## More Games from Jangari Koubou
- [Rusuban Shoujo ni Itazura o](https://pinovel.net/v34338)
- [Mai Sex](https://pinovel.net/v23094)
- [Youchou to Hentai Gumo](https://pinovel.net/v26995)
- [Mankitsu Koshitsu de Lolicon to ~Shoujo no Hiketsu o Chou Mankitsu!!~](https://pinovel.net/v23082)

---
*View the full details at [pinovel.net/v23094](https://pinovel.net/v23094).*

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```