---
title: "Otonari Koi Sensou!"
description: "Yui and Suzuka lived next door to Yuuto and they’ve been together since they were born. They often fought over him and made promises to marry him when they grew"
image: "https://t.vndb.org/cv/34/109434.jpg"
---

# Otonari Koi Sensou!

![Otonari Koi Sensou!](https://t.vndb.org/cv/34/109434.jpg)

**Alternative Title:** おとなり恋戦争！

**Developer:** Sugar House

**Release date:** Feb 28, 2014

**Platform:** Windows, Android

**Language:** Japanese

**Rating:** 6.9/10 (81 votes)

## Description
Yui and Suzuka lived next door to Yuuto and they’ve been together since they were born. They often fought over him and made promises to marry him when they grew up. He thought these happy times together would last forever, but they came to an end when Suzuka moved away.

Many years later, they re-appeared in front of his door. However, their love battle for him isn’t only limited to the two of them now, with his imouto-like neighbour Hotaru, lively kouhai Yuzu who calls him ‘oniichan’, and the respected daughter of the school chairman Manami also joining the fray. Surrounded on all sides, there’s no place to hide!?

[From [Hau~ Omochikaeri!](https://omochikaeri.wordpress.com/2014/02/01/february-2014-eroge-releases/)]

## Characters
### Miyabe Yuuto (宮部 悠斗)
- **Gender:** Male
- **Measurements:** Height: 179cm
- **Body:** Teen
- **Personality:** Donkan, Airhead
- **Role:** Father, High School Student, Dropout
- **Engages in:** Wedding

### Aihara Yuzu (藍原 ゆず)
An energetic girl, but for some reason she refers to the protagonist as "Onii-chan". She seems to have known the protagonist from before, but she refuse to remind him until the protagonist remembers for himself. She often competes with Hotaru for the position of the protagonist's 'imouto'.

- **Gender:** Female
- **Measurements:** Height: 149cm, C cup
- **Hair:** Pink, Shoulder-length
- **Body:** Teen, Slim, Pale
- **Clothes:** School Uniform, Knee-high Socks, Hairpin, Ribbon Tie
- **Eyes:** Amber
- **Personality:** Boku, Energetic, Third Person
- **Role:** Kouhai, High School Student, Imouto Act
- **Voiced by:** Momoya Minami

### Akamine Yui (赤峰 優衣)
The protagonist's neighbor and childhood friend. She loves the protagonist to the point where she sets wiretaps in his room and monitors his actions, but she can't be straight with the protagonist about this bad habit.

- **Gender:** Female
- **Measurements:** Height: 155cm, E cup
- **Hair:** Red, Waist Length+, Straight, Side Tail
- **Body:** Teen, Slim, Pale, Big Breast Sizes
- **Clothes:** School Uniform, Thigh-high Stockings, Wedding Dress, Ribbon Tie, Hair Tie
- **Eyes:** Amber
- **Personality:** Deredere, Possessive
- **Role:** Childhood Friend, Neighbor, High School Student
- **Engages in:** Wedding
- **Voiced by:** Ogura Yui

### Aoi Suzuka (葵 涼華)
The protagonist's other childhood friend. She competes with Yui as a love rival for the protagonist, but despite that the relationship between the three of them are still very good. A very mischievous girl, she likes teasing the protagonist. When she comes to with an unexpected situation, she will lose her cool very quickly.

- **Gender:** Female
- **Measurements:** Height: 160cm, F cup
- **Hair:** Black, Waist Length+, Straight
- **Body:** Teen, Slim, Pale, Big Breast Sizes
- **Clothes:** School Uniform, Knee-high Socks, Naked Apron, Ribbon Tie
- **Eyes:** Blue
- **Subject of:** Terminal Illness
- **Role:** Childhood Friend, High School Student
- **Engages in:** Teasing
- **Personality:** Mischievous
- **Voiced by:** Tamiyasu Tomoe

### Koto Manami (古都 真奈美)
Daughter of the school chairman. A very kind girl, she is an honor student and the ideal figure of every boy in the school. She is in love with the protagonist and won't stop making moves on him.

- **Gender:** Female
- **Measurements:** Height: 157cm, D cup
- **Hair:** Brown, Waist Length+, Straight
- **Body:** Teen, Slim, Pale
- **Clothes:** School Uniform, Headband, Pantyhose, Ribbon Tie
- **Eyes:** Blue
- **Role:** Mother, High School Student, Popular, Dropout
- **Subject of:** Pregnancy
- **Personality:** Kind, Naive
- **Engages in:** Childbirth
- **Voiced by:** Ari Suzuha

### Shirakawa Hotaru (白川 蛍)
She is one year younger than the protagonist and is like an imouto to him who lives across the street. She has the spare keys to the protagonist's house, and will often sneak into his bed to sleep with him.

- **Gender:** Female
- **Measurements:** Height: 139cm, AAA cup
- **Hair:** White, Twin Tails, Long, Straight, Sidehair
- **Body:** Teen, Slim, Pale, Small Breasts
- **Clothes:** School Uniform, Knee-high Socks, Ribbon Tie, Ribbon Hair Tie
- **Eyes:** Blue
- **Personality:** Deredere
- **Role:** Kouhai, Neighbor, High School Student
- **Voiced by:** Yuina

### Kujou Sayuri (九条 さゆり)
The protagonist's kouhai, she is Yuzu's classmate and is always protecting her.

- **Gender:** Female
- **Hair:** Black, Twin Tails, Waist Length+
- **Eyes:** Brown
- **Body:** Teen, Slim, Pale
- **Clothes:** School Uniform, Thigh-high Stockings, Ribbon Tie
- **Role:** Kouhai, High School Student
- **Personality:** Protective
- **Voiced by:** Yuuki Suzu

### Sasaki Kyouko (佐々木 京子)
The protagonist's class representative, everyone just call her "class rep". She takes everything she does seriously, but sometimes she is a little unreasonable.

- **Gender:** Female
- **Hair:** Brown, Shoulder-length, Straight
- **Body:** Teen, Slim, Pale
- **Clothes:** School Uniform, Glasses, Knee-high Socks, Ribbon Tie
- **Eyes:** White
- **Role:** Class President, Student Club President, High School Student
- **Voiced by:** Ueda Akane

### Shirakawa Harue (白川 春江)
Hotaru's mother. Her age is unknown (looks to be really young). She is the landlady of the apartment complex where she lives. She watches over the protagonist and her daughter's relationship with a smile.

- **Gender:** Female
- **Hair:** White, Waist Length+
- **Body:** Slim, Pale, Young-adult
- **Eyes:** Amber
- **Clothes:** Apron, Skirt, Pantyhose, Ribbon Hair Tie
- **Role:** Mother
- **Personality:** Kind
- **Engages in:** Not Sexually Involved
- **Voiced by:** Tachibana Mao

## Shops
- [Official Website](http://www.sugar-house.org/home.html)
- [DLsite](https://www.dlsite.com/appx/work/=/product_id/VJ010966.html)
- [Getchu](http://www.getchu.com/soft.phtml?id=777842)

## Releases
### Japanese
- **2014-01-28**: Otonari Koi Sensou! - Trial Edition - [Official website](http://www.sugar-house.org/trial.html)
- **2014-02-28**: Otonari Koi Sensou! - Package Edition - [Official website](https://web.archive.org/web/20150324133246/http://www.sugar-house.org/home.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=19236), [Getchu](http://www.getchu.com/soft.phtml?id=777842), [DMM](https://www.dmm.co.jp/mono/pcgame/-/detail/=/cid=1757apc10666/)
- **2014-06-13**: Otonari Koi Sensou! - Download Edition - [Official website](http://www.sugar-house.org/home.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=19236), [DMM](https://dlsoft.dmm.co.jp/detail/sugarhouse_0002/)
- **2015-09-11**: Otonari Koi Sensou! - [Official website](http://moeapp.net/special/otonari.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=19236), [DLsite](https://www.dlsite.com/appx/work/=/product_id/VJ010966.html), [Gyutto](https://gyutto.com/i/item184334)
- **2018-12-21**: Sugar House Complete Set - [DMM](https://dlsoft.dmm.co.jp/detail/sugarhouse_0003pack/)

## Tags
ADV, High School, Comedy, Imouto-type Heroine, Male Protagonist, Linear Plot, Ojousama Heroine, Modern Tsundere Heroine, Deredere Heroine, Protagonist's Childhood Friend as a Heroine, Terminal Illness, Student Heroine, Donkan Protagonist, Childhood Promise, Student Protagonist, Defloration, Only Virgin Heroines, Missionary Position, Outdoor Sex, Few Choices, Lip Sync, High School Student Heroine, Sex with Protagonist Only

## More Games from Sugar House
- [Chu→ning Lover](https://pinovel.net/v10026)
- [Otonari Koi Sensou!](https://pinovel.net/v12863)

---
*View the full details at [pinovel.net/v12863](https://pinovel.net/v12863).*

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