---
title: "Sister Maiden! ~Sakagami Shimai no 24 Jikan Taikyuu Ecchi Gasshuku~"
description: "Sakagami Sakura and Momiji are high school girls at a certain school.    One day, the two overhear the boys whispering about them—calling them the \"Iron Maidens"
image: "https://t.vndb.org/cv/06/33906.jpg"
---

# Sister Maiden! ~Sakagami Shimai no 24 Jikan Taikyuu Ecchi Gasshuku~

![Sister Maiden! ~Sakagami Shimai no 24 Jikan Taikyuu Ecchi Gasshuku~](https://t.vndb.org/cv/06/33906.jpg)

**Alternative Title:** しすたーめいでんっ！ ～坂上姉妹の24時間耐久エッチ合宿～

**Developer:** Atelier Sakura Konmai Studio

**Release date:** Oct 26, 2012

**Platform:** Windows, DVD

**Language:** Japanese

**Rating:** 5.8/10 (17 votes)

## Description
Sakagami Sakura and Momiji are high school girls at a certain school.  

One day, the two overhear the boys whispering about them—calling them the "Iron Maidens." Frustrated and unsure how to respond, they turn to their longtime classmate Eiji for advice.  

"Ugh, a playboy like you wouldn’t get our problems anyway."  

"If you’re not into it, just brush it off."  

"But we are girls our age, you know. It’s not like we’re completely not interested..."  

"Then, wanna give it a shot?"  

Though hesitant about Eiji’s wild proposal—a 24-hour sex marathon—Sakura somehow finds herself agreeing, and Momiji follows suit.  

Joined by Eiji’s upperclassman, the delinquent Seigi, the Sakagami sisters end up at a love hotel with the two boys.  

At first, Sakura and Momiji are stiff with nerves, but under the boys’ experienced touch, their resistance melts away.  

What begins as awkward and painful soon transforms into waves of overwhelming pleasure—and their 24-hour session spirals into an endless climax.

[Translated from [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0077070/)]

## Characters
### Sakagami Momiji (坂上 椛)
- **Gender:** Female
- **Hair:** Black, Long, Blunt Bangs
- **Body:** Teen, Slim, Pale, Mole
- **Clothes:** School Uniform, Necktie, Ribbon Hair Accessory
- **Eyes:** Blue
- **Personality:** Reserved
- **Role:** High School Student, Younger Sister
- **Voiced by:** Tsukimiya Rei

### Koide Masayoshi (小出 正義)
- **Gender:** Male
- **Hair:** Brown, Short, Goatee, Spiky
- **Body:** Slim, Young-adult, Olive
- **Eyes:** Amber
- **Clothes:** Suit, Earrings, Watch, Pendant Necklace

### Sakagami Sakura (坂上 咲良)
- **Gender:** Female
- **Hair:** Brown, Shoulder-length
- **Body:** Slim, Pale, Big Breasts
- **Clothes:** School Uniform, Necktie
- **Eyes:** Green
- **Personality:** Outgoing
- **Role:** High School Student, Older Sister
- **Voiced by:** Mikogami Neko

### Sugisaki Eiji (杉崎 衛司)
- **Gender:** Male
- **Hair:** Brown, Short
- **Body:** Teen, Slim, Olive
- **Eyes:** Amber
- **Clothes:** Shirt
- **Role:** Classmate, High School Student

## Shops
- [Official Website](http://www.aicherry.com/ateliersakura/konmai-studio/brand/002/002.html)
- [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ012079.html)

## Releases
### Japanese
- **2012-10-18**: Sister Maiden! ~Sakagami Shimai no 24 Jikan Taikyuu Ecchi Gasshuku~ Trial Edition - [Official website](http://www.aicherry.com/ateliersakura/konmai-studio/brand/002/down.html)
- **2012-10-26**: Sister Maiden! ~Sakagami Shimai no 24 Jikan Taikyuu Ecchi Gasshuku~ - [Official website](http://www.aicherry.com/ateliersakura/konmai-studio/brand/002/002.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=17602)
- **2013-01-18**: Sister Maiden! ~Sakagami Shimai no 24 Jikan Taikyuu Ecchi Gasshuku~ Download Edition - [Official website](http://www.aicherry.com/ateliersakura/konmai-studio/brand/002/002.html), [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ007472.html), [Gyutto](https://gyutto.com/i/item98138), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0077070/), [DL.Getchu](http://dl.getchu.com/i/item1004184), [DMM](https://dlsoft.dmm.co.jp/detail/aquras_0022/)
- **2013-06-13**: Sister Maiden! ~Sakagami Shimai no 24 Jikan Taikyuu Ecchi Gasshuku~ DVDPG - [Official website](https://web.archive.org/web/20140810040154/http://aicherry.com/aicherryhp/contents/petitcherry/jacket/aicdv0371/aicdv0371.html), [DMM](https://www.dmm.co.jp/mono/anime/-/detail/=/cid=1481aicdv0371/)
- **2018-09-07**: Atelier Sakura Tsurupeta 5hon Pack - [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ012079.html), [Gyutto](https://gyutto.com/i/item207825), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0176355/), [DL.Getchu](http://dl.getchu.com/i/item4011662), [DMM](https://dlsoft.dmm.co.jp/detail/aquras_0124pack/)

## Tags
ADV, Female Protagonist, High Sexual Content, Group Sex of One Female and Several Males, Group Sex of Multiple Females and Males, Missionary Position, Blowjob, Doggy Style, Naked Sprites, Deepthroat, Cowgirl, Reverse Cowgirl, Pettanko Protagonist, Swinging, Standing Sex, Bathroom Sex, Blowbang, Quickie Fix Position, Double Penetration (Group Sex), Vaginal Fingering, High School Student Heroine, Heroine with Big Breasts

## More Games from Atelier Sakura Konmai Studio
- [Onii-chan, Watashi Mitai na Manaita Hinnyuu no Imouto ni Ashikoki Sarete Kanjichaun Da. Hentai Da ne. Dohentai★](https://pinovel.net/v10658)
- [Sister Maiden! ~Sakagami Shimai no 24 Jikan Taikyuu Ecchi Gasshuku~](https://pinovel.net/v11229)
- [Memento Shoujo no Karada ni Kizamareta, Saimin to Kairaku no Kioku](https://pinovel.net/v12299)

---
*View the full details at [pinovel.net/v11229](https://pinovel.net/v11229).*

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