---
title: "Momoiro Seiheki Kaihou Sengen!"
description: "Japan has now become one of the world's most erotic adult powers. Sex becomes a big culture for the Japanese and is actively incorporated into school. From lect"
image: "https://t.vndb.org/cv/19/142719.jpg"
---

# Momoiro Seiheki Kaihou Sengen!

![Momoiro Seiheki Kaihou Sengen!](https://t.vndb.org/cv/19/142719.jpg)

**Alternative Title:** ももいろ性癖開放宣言！

**Developer:** softhouse-seal GRANDEE

**Release date:** Mar 28, 2014

**Platform:** Windows, DVD, BDP

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

**Rating:** 7.0/10 (85 votes)

## Description
Japan has now become one of the world's most erotic adult powers. Sex becomes a big culture for the Japanese and is actively incorporated into school. From lectures to pratical lessons, every sexual knowledge is taught widely.

This story takes place at a private christian girls school, where there is a class that collects students who are treated as problem children. The protagonist is here to teach them sexual knowledge. As their teacher, he will engage in various ecchi situations for the sake of teaching.

[Translated from [Official Site](http://softhouse-seal.com/product/g-007/story.html)]

## Characters
### Oda Kousuke (織田 幸助)
- **Gender:** Male
- **Hair:** Black, Short, Straight
- **Body:** Pale
- **Clothes:** School Uniform
- **Eyes:** Hidden
- **Role:** Sex Education Teacher

### Inamori Chizuru (稲森 千鶴)
The kind and timid class president of Fuzzy Rose Colors, the class where all the problem students are gathered. Although she is hardworking and has a strong sense of responsibility, Chizuru tends to fail because of her clumsy nature and how she keeps repeating the same mistakes. She dislikes burdening others and especially her mother, as she grew up in a single-mother household.

Chizuru isn't that good with boys because they used to bully her for not having a father when she was younger. Although she can talk to them, she gets sick when one touches her.

- **Gender:** Female
- **Measurements:** Height: 157cm, Bust-Waist-Hips: 92-58-88cm, G cup
- **Birthday:** 8 November
- **Hair:** Red, Odango, Wavy, Shoulder-length, Sidehair, Tiny Braid
- **Body:** Teen, Slim, Pale, Inverted Nipples, Big Breasts
- **Clothes:** School Uniform, Pajamas, Thigh-high Stockings, Hair Flower, Garter
- **Personality:** Hard Worker, Timid, Kind, Clumsy, Sensitive
- **Subject of:** Bullying, Androphobia
- **Role:** Class President, Classmate, High School Student, Exhibitionist, Half-orphan
- **Eyes:** Garnet
- **Voiced by:** Sakura Momoka

### Kiryuuin Rindou (霧生院 竜胆)
The student council president who is the daughter of a politician. Rindou excels in all school subjects except for sex ed, which is why she is in the Fuzzy Rose Colors class. Her father loves historical dramas, and as such, she has watched a lot of them ever since she was young. Because of that, she often uses old-fashioned language, especially when referring to herself.

Rindou has a complex about her short stature, especially because she gets treated like a kid. The other students also see her as some sort of a mascot character. Despite her big attitude and strong front, Rindou is secretly a masochist.

- **Gender:** Female
- **Measurements:** Height: 140cm, Bust-Waist-Hips: 78-53-74cm, D cup
- **Birthday:** 3 February
- **Hair:** Black, Twin Tails, Long, Straight, Sidehair
- **Body:** Teen, Slim, Pale, Fang, Big Breasts, Short
- **Clothes:** School Uniform, Kemonomimi Headband, Thigh-high Stockings, Collar, Beret, Tail, Yukata, Ribbon Hair Tie
- **Personality:** Hard Worker, Serious, Warawa, Archaic Dialect, Masochist
- **Eyes:** Green
- **Role:** Student Council President, Classmate, High School Student, Yamato Nadeshiko, Popular, Honor Student, Ojousama
- **Subject of:** Inferiority Complex, Teasing
- **Items:** Hand Fan
- **Voiced by:** Konoha

### Kitami Karen (北見 華恋)
[url=/c50232]Kousuke's[/url] childhood friend. They used to play together a lot when they were younger because their parents were on very good terms. However, after her classmates started teasing her about their relationship, they became estranged, and even told Kousuke that she hates him. However, in reality she is worried about the fact that she still hasn't apologized, and doesn't want to completely lose her relationship with him. Although Karen acts and appears to be a refined girl, in reality she is a huge idiot.

She has a complex about her small breasts, which Kousuke likes to tease her about. In exchange, Karen often kicks him with so much force that it actually stuns him. And because Karen has attended all-girls' schools all throughout her life, she is quite sensitive to the smell of men.

- **Gender:** Female
- **Measurements:** Height: 158cm, Bust-Waist-Hips: 74-56-78cm, B cup
- **Birthday:** 14 July
- **Hair:** Blond, Ahoge, Long, Intake, Spiky Bangs
- **Body:** Teen, Slim, Pale, Medium Breasts
- **Clothes:** School Uniform, Knee-high Socks, Hairpin, Ribbon Hair Accessory, Shimapan, Thigh Band
- **Personality:** Airhead, Idiot, Shy, Refined, Tomboy, Loner
- **Engages in:** Domestic Violence
- **Role:** Childhood Friend, Classmate, High School Student
- **Subject of:** Teasing
- **Eyes:** Tsurime, Cyan
- **Voiced by:** Azuma Karin

### Oda Mao (織田 茉桜)
[url=/c17473]Kousuke's[/url] older sister who hates all males, whether they are humans or animals. Because she doesn't want to breathe the same air as Kousuke, she moved to the dormitory after passing the school's entrance exam.

She hates males because they are filthy, how they smell, how they're so selfish and perverted, and because she never knows what they're thinking. She hates everything about males. Despite this, she is not a lesbian.
She especially likes using sex toys to pleasure herself.

- **Gender:** Female
- **Measurements:** Height: 155cm, Bust-Waist-Hips: 88-55-87cm, F cup
- **Birthday:** 4 April
- **Hair:** White, Twin Tails, Waist Length+, Intake, Spiky Bangs, Sidehair
- **Body:** Teen, Slim, Pale, Fang, Big Breasts
- **Clothes:** School Uniform, Pantyhose, Thigh-high Stockings, Ribbon Hair Tie, Spats, Gas Mask, Patterned Thigh-high Stockings
- **Personality:** Hard Worker, Classic Tsundere, Strict, Rude, Misandrist
- **Role:** Full Sister, Classmate, High School Student, Older Sister
- **Eyes:** Garnet
- **Engages in:** Moving
- **Voiced by:** Misonoo Mei

### Ooe Kagura (大江 神楽)
[url=/c50232]Kousuke's[/url] strange kouhai who is often staring at the sky and occassionally claiming that she is receiving radio waves from the aliens. Kagura is extremely curious about non-scientific things such as fortune telling and magic. She claims that she needs Kousuke's semen in order to perform her magic arts. She is overprotective of her younger sister [url=/c17479]Otoha[/url], and also loves eating her cooking. She also has a sensitive tongue.

- **Gender:** Female
- **Measurements:** Height: 150cm, Bust-Waist-Hips: 77-56-79cm, C cup
- **Birthday:** 1 June
- **Hair:** Pink, Waist Length+, Straight, Blunt Bangs, Sidehair
- **Body:** Teen, Slim, Pale
- **Clothes:** School Uniform, Knee-high Socks, Ribbon Hair Accessory, String Ribbon Tie
- **Eyes:** Blue, Jitome
- **Personality:** Stoic, Strange, Food Lover, Absentminded, Sister Complex
- **Role:** Twin Sister, Kouhai, High School Student, Older Sister, Fortune Teller
- **Voiced by:** Suzune Kagetsu

### Kiryuuin Musashi (霧生院 武蔵)
[url=/c17474]Rindou's[/url] grandfather.

- **Gender:** Male
- **Hair:** White, Short, Beard, Moustache, Slicked Back
- **Eyes:** Green
- **Body:** Old, Wrinkles
- **Clothes:** Kimono
- **Role:** Grandfather
- **Personality:** Washi
- **Voiced by:** Nishioka Kengo

### Nanase Subaru (七星 昴)
A transfer student who quickly gets along with [url=/c50232]Kousuke[/url] due to his friendly and cheerful personality. He is a talented advisor and knows how to give Kousuke advice regarding the girls around him. In addition to this, he is often selling suspicious sex toys to Kousuke, and always gets excited whenever they talk about perverted topics, which often leads to other students joining in their conversations as well.

- **Gender:** Male
- **Measurements:** Bust-Waist-Hips: 87-56-84cm, D cup
- **Hair:** Ahoge, Ponytail, Waist Length+, Orange
- **Engages in:** Cross-dressing
- **Body:** Reverse-trap
- **Clothes:** School Uniform, Necktie
- **Eyes:** Amber
- **Personality:** Boku, Pervert, Friendly, Talkative
- **Role:** High School Student, Transfer Student
- **Voiced by:** Momoya Minami

### Ooe Otoha (大江 音羽)
[url=/c17475]Kagura's[/url] younger twin sister. Otoha has a very kind personality. Because of her weak body, she often spends time at the school infirmary. She is very skilled at cooking, and started cooking because she felt sorry for her sister having to look after her all the time.

- **Gender:** Female
- **Measurements:** Bust-Waist-Hips: 76-55-78cm, B cup
- **Hair:** Pink, Shoulder-length
- **Body:** Teen, Slim, Pale, Medium Breasts
- **Clothes:** School Uniform, Ribbon Hair Tie
- **Engages in:** Cooking
- **Eyes:** Blue, Jitome
- **Role:** Twin Sister, High School Student, Younger Sister
- **Personality:** Kind
- **Subject of:** Weakness
- **Voiced by:** Udaka Naru

### Watanuki Shinobu (四月一日 忍)
The homeroom teacher of the Fuzzy Rose Colors class who also works as the school nurse. She is often in a bad mood and tends to push her duties onto her students (especially onto [url=/c50232]Kousuke[/url]). Despite this Shinobu is proficient when it comes to her work. Also loves smoking.

- **Gender:** Female
- **Measurements:** Bust-Waist-Hips: 88-58-84cm, F cup
- **Hair:** Violet, Ahoge, Shoulder-length
- **Eyes:** Amber
- **Clothes:** Mini-dress, Thigh-high Stockings, Lab Coat
- **Personality:** Lazy, Grumbler
- **Engages in:** Smoking
- **Body:** Mole, Big Breasts
- **Role:** School Nurse, Homeroom Teacher
- **Items:** Cigarette, Stethoscope
- **Voiced by:** Kasumi Ryou

## Shops
- [Official Website](http://softhouse-seal.com/product/g-007/index.html)
- [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ008384.html)
- [Getchu](http://www.getchu.com/soft.phtml?id=943345)

## Releases
### Japanese
- **2014-02-28**: Momoiro Seiheki Kaihou Sengen! - Web Trial Edition - [Official website](http://softhouse-seal.com/product/g-007/download.html#trial)
- **2014-03-28**: Momoiro Seiheki Kaihou Sengen! - First Press Limited Edition - [Official website](https://web.archive.org/web/20210127013241/https://softhouse-seal.com/product/g-007/index.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=19833), [Getchu](http://www.getchu.com/soft.phtml?id=792199)
- **2014-03-28**: Momoiro Seiheki Kaihou Sengen! - Download Edition - [Official website](http://softhouse-seal.com/product/g-007/index.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=19833), [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ008384.html), [Gyutto](https://gyutto.com/i/item121750), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0097020/), [DL.Getchu](http://dl.getchu.com/i/item1004696), [DMM](https://dlsoft.dmm.co.jp/detail/hobc_0429/)
- **2014-03-30**: Momoiro Seiheki Kaihou Sengen! Hadaka Patch - [Official website](http://softhouse-seal.com/grandee/support.html)
- **2014-04-07**: Momoiro Seiheki Kaihou Sengen! Teikoku Chakunin Patch!
- **2014-04-07**: Momoiro Seiheki Kaihou Sengen! Gekitotsu! Mara Oki Kaisen
- **2015-02-26**: Momoiro Seiheki Kaihou Sengen! - DVDPG - [Official website](https://web.archive.org/web/20160802080342/http://www.aicherry.com/aicherryhp/contents/aicherry/jacket/aicdv0456/aicdv0456.html)
- **2015-02-26**: Momoiro Seiheki Kaihou Sengen! - Blu-ray Game - [Official website](https://web.archive.org/web/20161209004722/http://www.aicherry.com/BD/blu_ray/contents/aicherry/jacket/aicbd0035/aicbd0035.html), [Getchu](http://www.getchu.com/soft.phtml?id=943345)
- **2017-04-13**: Momoiro Seiheki Kaihou Sengen! - Blu-ray Game Limited Best Price Edition - [Official website](https://web.archive.org/web/20170910060134/http://www.aicherry.com/aicherryhp/contents/aiclb0005/aiclb0005.html)
- **2017-04-13**: Momoiro Seiheki Kaihou Sengen! - DVDPG Limited Best Price Edition - [Official website](https://web.archive.org/web/20170910054400/http://www.aicherry.com/aicherryhp/contents/aicld0008/aicld0008.html)

### Chinese (simplified)
- **2016-04-01**: Taose Xingpi Kaifang Xuanyan!

## Tags
ADV, High School, Blood-related Brother/Sister Incest, Male Protagonist, Multiple Endings, Loli Heroine, Classic Tsundere Heroine, Nukige, Map Movement, Group Sex of One Male and Several Females, Student Heroine, Teacher Protagonist, Tomboy Heroine, Student Protagonist, Perverted Protagonist, Female Domination, Vibrators, Dildos, Defloration, Only Virgin Heroines, Wake-up Sex, Sixty-nine, Cunnilingus, Doggy Style, Female Ejaculation, Cowgirl, Reverse Cowgirl, Shimaidon Ending, Standing Sex, Piledriver, Kissing Scene, Shimaidon with Twins Ending, Oppai Loli Heroine, Background Moans, Reverse Missionary, Quickie Fix Position, Shoejob, Boobs on Glass, Heroine with Inverted Nipples, Kantai Collection, Hate Sex (Consensual), Sex on Toilet, Rope Bondage, Single Boobjob, Single Footjob, Single Blowjob, Pissing, High School Student Heroine, Heroine with Big Breasts, Missionary Position, Sitting Sex, Threesome, Vaginal Masturbation, Ojousama Heroine, Exhibitionism, Yamato Nadeshiko Heroine, Androphobic Heroine, Sex at School, Half-orphan Heroine, Twin Tail Heroine, Outdoor Sex, Sex with Protagonist Only, Petplay, Clumsy Heroine, Student Council President Heroine, Heroine with Kimono, Class President Heroine, Masochist Heroine, Anal Toys, Heroine with Ahoge, Anilingus, Butterfly, Protagonist's Older Sister as a Heroine, Protagonist's Childhood Friend as a Heroine, Protagonist's Full Sister as a Heroine, Shy Heroine, Anal Sex, Airhead Heroine, Single Handjob, Nurse Heroine, Twin Sisters as Heroines, Protagonist's Kouhai as a Heroine, Reverse Trap Heroine, Teacher Heroine, Anal Plug Tail, Fortune-teller Heroine

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---
*View the full details at [pinovel.net/v14001](https://pinovel.net/v14001).*

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