---
title: "Kinkyuu Sengen - Onee-chan-tachi wa Shojo o Sotsugyou Shimasu!!"
description: "The protagonist is born into a distinguished family with 4 older sisters. When they are young, the siblings are always together and even promise to get married."
image: "https://t.vndb.org/cv/29/29929.jpg"
---

# Kinkyuu Sengen - Onee-chan-tachi wa Shojo o Sotsugyou Shimasu!!

![Kinkyuu Sengen - Onee-chan-tachi wa Shojo o Sotsugyou Shimasu!!](https://t.vndb.org/cv/29/29929.jpg)

**Alternative Title:** 《緊急宣言》お姉ちゃん達は処女を卒業しますっ！！

**Developer:** Sweet Heart

**Release date:** Oct 28, 2016

**Platform:** Windows, Android

**Language:** Japanese

**Rating:** 6.7/10 (33 votes)

## Description
The protagonist is born into a distinguished family with 4 older sisters. When they are young, the siblings are always together and even promise to get married. However, as they grow older, the distance between them also widens.

Then one day, their grandfather suddenly tells the sisters that they must become brides within the year. However, they are forbidden to associate with the males and ordered to protect their virginities until then.

But the sisters are still growing girls and therefore, very interested in sexual matters. They want to have at least a passionate experience first before marrying. Thus, they turn to the protagonist and pretty much force him to cooperate.

[Translated from [Official Site](http://www.interheart.co.jp/index.php?cID=469)]

## Characters
### Shinomiya Naoto (四之宮 直斗)
The only boy of the Shinomiya family. Has a huge sister complex.

When he discovers the sisters' plot to enjoy a fun sex life before being forced to marry middle aged men for their grandfather he hopes to impregnate them all before the year is over so he never has to say goodbye to his beloved sisters.

- **Gender:** Male
- **Hair:** Brown, Short
- **Eyes:** Hidden
- **Personality:** Smart
- **Role:** Younger Brother

### Shinomiya Akina (四之宮 秋奈)
The sweetest and kindest of Naota's older sisters. Is teased by her sisters for having a brother complex.

- **Gender:** Female
- **Measurements:** Height: 153cm, Bust-Waist-Hips: 86-58-86cm
- **Hair:** Pink, Long, Short Bangs
- **Body:** Teen, Slim, Pale, Big Breast Sizes
- **Clothes:** School Uniform, Ribbon Tie, Ribbon Hair Tie, Pleated Skirt
- **Eyes:** Blue
- **Personality:** Relaxed
- **Subject of:** Pregnancy
- **Role:** Older Sister
- **Voiced by:** Kanematsu Yuka

### Shinomiya Haruka (四之宮 春佳)
The strict oldest sister of the Shinomiya household. She keeps her younger siblings in line.

- **Gender:** Female
- **Measurements:** Height: 161cm, Bust-Waist-Hips: 92-58-92cm
- **Hair:** Long, Multiple Tails, Orange
- **Body:** Teen, Slim, Pale, Big Breast Sizes
- **Eyes:** Violet
- **Clothes:** Maid's Dress, Ribbon Tie, Ribbon Hair Tie
- **Subject of:** Pregnancy
- **Personality:** Kind
- **Role:** Older Sister
- **Voiced by:** Ayano Rio

### Shinomiya Kasumi (四之宮 香澄)
A fan of girls comics, she uses them as references for love advice. Has a rape fetish.

- **Gender:** Female
- **Measurements:** Height: 164cm, Bust-Waist-Hips: 92-59-88cm
- **Hair:** Red, Long, Side Tail
- **Body:** Teen, Slim, Pale, Big Breast Sizes
- **Clothes:** School Uniform, Ribbon Tie, Ribbon Hair Tie, Pleated Skirt
- **Eyes:** Amber
- **Personality:** Carefree
- **Subject of:** Pregnancy
- **Role:** Older Sister
- **Voiced by:** Yuuki Honoka

### Shinomiya Miyu (四之宮 美由)
Naota's harsh older sister. Desperately wants to marry a wealthy gorgeous man but is afraid because she lacks romantic experience.

- **Gender:** Female
- **Measurements:** Height: 159cm, Bust-Waist-Hips: 92-59-90cm
- **Hair:** Blond, Twin Tails, Waist Length+
- **Body:** Teen, Slim, Pale, Big Breast Sizes
- **Clothes:** School Uniform, Ribbon Tie, Ribbon Hair Tie, Pleated Skirt
- **Eyes:** Blue
- **Subject of:** Pregnancy
- **Role:** Older Sister
- **Personality:** Brother Complex, Jealous, Moody
- **Voiced by:** Kazahana Mashiro

## Shops
- [Official Website](http://www.interheart.co.jp/index.php?cID=461)
- [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ012320.html)
- [Getchu](http://www.getchu.com/soft.phtml?id=1000269)

## Releases
### Japanese
- **2016-09-20**: Kinkyuu Sengen - Onee-chan-tachi wa Shojo o Sotsugyou Shimasu!! - Trial Edition - [Official website](http://www.interheart.co.jp/index.php?cID=470)
- **2016-10-28**: Kinkyuu Sengen - Onee-chan-tachi wa Shojo o Sotsugyou Shimasu!! - Package Edition - [Official website](http://www.interheart.co.jp/index.php?cID=461), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=23979), [Getchu](http://www.getchu.com/soft.phtml?id=915933)
- **2016-12-02**: Kinkyuu Sengen - Onee-chan-tachi wa Shojo o Sotsugyou Shimasu!! - Download Edition - [Official website](http://www.interheart.co.jp/index.php?cID=461), [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ010742.html), [Gyutto](https://gyutto.com/i/item181285), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0149129/), [DL.Getchu](http://dl.getchu.com/i/item1005738), [DMM](https://dlsoft.dmm.co.jp/detail/nrevo_0004)
- **2016-12-02**: Kinkyuu Sengen - Onee-chan-tachi wa Shojo o Sotsugyou Shimasu!! - [DLsite](https://www.dlsite.com/appx/work/=/product_id/VJ010645.html)
- **2018-05-25**: Interheart Premium BOX 3 - [Official website](http://www.interheart.co.jp/pcgame/premiumbox3/), [Getchu](http://www.getchu.com/soft.phtml?id=1000269)
- **2018-08-03**: Interheart Premium BOX 3 - Download Edition - [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ012003.html)
- **2018-11-09**: Kinkyuu Sengen! - Onee-chan-tachi wa Shojo o Sotsugyou Shimasu!! After Story - [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=27449), [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ012320.html), [Gyutto](https://gyutto.com/i/item212267), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0180564/), [DL.Getchu](http://dl.getchu.com/i/item4013845), [DMM](https://dlsoft.dmm.co.jp/detail/inheart_0076/)

## Tags
Sexual Content, ADV, Blood-related Brother/Sister Incest, Male Protagonist, Multiple Endings, Nukige, Group Sex of One Male and Several Females, Heroine with Zettai Ryouiki, Only Virgin Heroines, Sixty-nine, Doggy Style, Few Choices, Only Protagonist's Sisters as Heroine(s), Standing Sex, Sitting Sex, Twin Boobjob, Only Older Heroines, Single Buttjob, Inbreeding, Brocon Heroine, French Kiss, Sex at School, Protagonist's Older Sister as a Heroine, Butterfly, Sex on Toilet, Protagonist's Full Sister as a Heroine, Anal Sex, Cowgirl, Wake-up Sex, Masturbation in front of an Audience, Only Blood-related Heroines, Heroine with Big Breasts, Vaginal Fingering, Defloration

## More Games from Sweet Heart
- [Netori Gakuen ~Kareshi Mochi Demo Okamainashi! Yaritai Houdai ADV~](https://pinovel.net/v14864)
- [Ojou-sama wa Katai no ga Osuki! ~Shinsei Naru Joshi Ryou Nikki~](https://pinovel.net/v15925)
- [Nee-chan, Gomen Dashichatta! ~Onee-chan wa Boku Sen'you~](https://pinovel.net/v16854)
- [Harem Game ~Ore wa Kore no Okage de Eroge no Shujinkou ni Naremashita!~](https://pinovel.net/v18721)
- [Kinkyuu Sengen - Onee-chan-tachi wa Shojo o Sotsugyou Shimasu!!](https://pinovel.net/v19688)
- [Idol ★ Clinic - Koi no Kusuri de H na Shohou](https://pinovel.net/v20368)
- [Sukechatte!! ~Kyuushi ni Isshou o Ete Noumitsu Second Life~](https://pinovel.net/v20846)
- [Harem Game 2 ~Futsuu ja Nai Shujinkou ga Harem o Kizuku Fantasy (?)~](https://pinovel.net/v21533)
- [Harem Mura ~Dousotsu Fukahi! Kodane Teikyou wa Mura no Okite Desu!!~](https://pinovel.net/v22513)
- [Nakayoshi Kazoku Nara Kiss mo Nakadashi mo Touzen Da yo ne!](https://pinovel.net/v26254)

---
*View the full details at [pinovel.net/v19688](https://pinovel.net/v19688).*

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