---
title: "Mai x Mai? Sunao ni Narenai Imouto-tachi to no Ecchi na Kyoudou Seikatsu"
description: "Our protagonist, Ren, and his younger sister, Rio, essentially live together. Lately, Rio has been acting strangely aloof, but they've been living a relatively "
image: "https://t.vndb.org/cv/90/35390.jpg"
---

# Mai x Mai? Sunao ni Narenai Imouto-tachi to no Ecchi na Kyoudou Seikatsu

![Mai x Mai? Sunao ni Narenai Imouto-tachi to no Ecchi na Kyoudou Seikatsu](https://t.vndb.org/cv/90/35390.jpg)

**Alternative Title:** 妹×妹？ 素直になれない妹達とのえっちな共同生活

**Developer:** Mount Position

**Release date:** Jul 27, 2018

**Platform:** Windows

**Language:** Japanese

**Rating:** 6.7/10 (25 votes)

## Description
Our protagonist, Ren, and his younger sister, Rio, essentially live together.
Lately, Rio has been acting strangely aloof, but they've been living a relatively peaceful life.

Then, one day on a holiday—
Rio, in a panic, wakes him up (as usual), rudely.
He rushes to the living room and finds his sister's best friend, Yuuri, there.
When he asked her what was going on, she said,

"As of today, I'm your little sister,"

And so, without really understanding what was going on, they ended up living together.

For some reason, the number of little sisters suddenly increased.
And the real little sister became even more grumpy.
But as Yuuri clinged to Ren, Rio's attitude gradually changed.

"...It's all your fault, big brother."

Then, what should have been peaceful days suddenly become exciting...
And so, their lives turn sweet and erotic.

[From [Getchu](https://www.getchu.com/soft.phtml?id=1010738)]

## Characters
### Mizuki Ren (瑞木 蓮)
- **Gender:** Male
- **Hair:** Brown, Short, Straight
- **Body:** Teen, Pale
- **Engages in:** Cooking
- **Role:** Full Brother, Domestic Partner, High School Student, Tsukkomi, Older Brother
- **Personality:** Sister Complex

### Ichinomiya Yuuri (一宮 悠莉)
- **Gender:** Female
- **Hair:** Black, Violet, Long, Wavy, V Bangs, Half Updo
- **Body:** Teen, Slim, Pale, Small Breasts
- **Clothes:** Pajamas, Cardigan, Skirt, Pantyhose, Bracelet, Clothing with Ribbons
- **Role:** Domestic Partner, High School Student, Ojousama, Imouto Act
- **Personality:** Funny, Mysterious, Sloppy
- **Eyes:** Garnet, Jitome
- **Voiced by:** Arikawa Mana

### Mizuki Rio (瑞木 理桜)
- **Gender:** Female
- **Hair:** Blond, Waist Length+, Straight, Blunt Bangs, Sidehair
- **Body:** Teen, Slim, Pale, Big Breasts
- **Engages in:** Cooking
- **Eyes:** Green
- **Clothes:** Headband, Necktie, Cardigan, Miniskirt, Shorts, Thigh-high Stockings, Blouse
- **Personality:** Tsundere, Friendly, Smart, Watashi, Childishly Violent
- **Role:** Full Sister, Domestic Partner, High School Student, Younger Sister
- **Voiced by:** Yukimura Toa

## Shops
- [Official Website](http://manposi.com/product/0087/index.htm)
- [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ012010.html)
- [Getchu](http://www.getchu.com/soft.phtml?id=1010738)

## Releases
### Japanese
- **2018-07-18**: Mai x Mai? Sunao ni Narenai Imouto-tachi to no Ecchi na Kyoudou Seikatsu - Trial Edition - [Official website](http://manposi.com/product/0087/download.htm)
- **2018-07-27**: Mai x Mai? Sunao ni Narenai Imouto-tachi to no Ecchi na Kyoudou Seikatsu - Package Edition - [Official website](http://manposi.com/product/0087/index.htm), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=26838), [Getchu](http://www.getchu.com/soft.phtml?id=1010738)
- **2018-07-27**: Mai x Mai? Sunao ni Narenai Imouto-tachi to no Ecchi na Kyoudou Seikatsu - Download Edition - [Official website](http://manposi.com/product/0087/index.htm), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=26838), [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ012010.html), [Gyutto](https://gyutto.com/i/item206593), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0174910/), [DL.Getchu](http://dl.getchu.com/i/item4010356), [DMM](https://dlsoft.dmm.co.jp/detail/aquras_0117/)

## Tags
ADV, Male Protagonist, Nukige, Protagonist's Non-blood-related Sister as a Heroine, Group Sex of One Male and Several Females, Student Heroine, Tsundere Heroine, Defloration, Only Virgin Heroines, Twin Blowjob, Siscon Protagonist, Cowgirl, Defloration During Common Route, Only Protagonist's Sisters as Heroine(s), Standing Sex, Sitting Sex, Soapy Massage, Reverse Missionary, Quickie Fix Position, Tribadism on Penis, Kneepit Sex, Pantyjob, Only Younger Heroines, High School Student Heroine, Heroine with Big Breasts, Heroine with Small Breasts (Non-Loli), Mutual Masturbation, Childishly Violent Heroine, French Kiss, Single Boobjob, Ojousama Heroine, Doggy Style, Non-blood-related Brother/Sister Incest, Vaginal Masturbation, Intercrural Sex, Vaginal Gaping, Missionary Position, Bathroom Sex, Blood-related Brother/Sister Incest, Vaginal Fingering, Protagonist's Full Sister as a Heroine, Imouto-type Heroine, Protagonist's Younger Sister as a Heroine, Penile Masturbation

## More Games from Mount Position
- [Icha Love Dousei Seikatsu -Osananajimi to Asa kara Ban made Icha Icha Icha Icha-](https://pinovel.net/v21302)
- [One Love ~Yoru no Boku wa Ecchi na Onee-chan no Omocha ni Naru~](https://pinovel.net/v21394)
- [Mai x Mai? Sunao ni Narenai Imouto-tachi to no Ecchi na Kyoudou Seikatsu](https://pinovel.net/v23138)
- [Ama Imo! Amaenbou de Guutara na Imouto no Ecchi na Yuuwaku](https://pinovel.net/v23754)

---
*View the full details at [pinovel.net/v23138](https://pinovel.net/v23138).*

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