---
title: "Marshmallow☆Imouto☆Succubus☆"
description: "Tsukikawa Keisuke had a wet dream about his little sister. Saki was still very naive, so much that she thought babies were made by kissing.  In the dream, Saki "
image: "https://t.vndb.org/cv/85/77385.jpg"
---

# Marshmallow☆Imouto☆Succubus☆

![Marshmallow☆Imouto☆Succubus☆](https://t.vndb.org/cv/85/77385.jpg)

**Alternative Title:** ましゅまろ☆いもうと☆さっきゅばす☆

**Aliases:** ましゅまろ♥いもうと♥さっきゅばす♥

**Developer:** DWARFSOFT

**Release date:** Jul 24, 2015

**Platform:** Windows, Android, DVD

**Language:** English, Indonesian, Japanese, Chinese (simplified), Russian

**Rating:** 7.0/10 (177 votes)

## Description
Tsukikawa Keisuke had a wet dream about his little sister.
Saki was still very naive, so much that she thought babies were made by kissing.

In the dream, Saki was very unlike herself. She was experienced, seductive,
visiting his bedside and intently removing his pants to expose his raging erection.
Her fingers went up and down his shaft gently at first, the she tightened her grip,
pumping her fist on his hardness. When he at last clenched and released,
spewing an arc of jism, her mouth was expertly positioned to catch it all. She swallowed.
Keisuke lay paralyzed on the bed. He felt awake, and ashamed.
It was that sort of dream, so vividly graphic that he thought it could be real.

The next morning Saki greeted Keisuke in her usual way.
Yes, it was just a dream. What a relief.

Keisuke learned that his father was home for the first time in a while.
His father was a folklorist, like a cultural researcher. The timing was not a coincidence.
His father explained that inside Saki lurked a demon -- a succubus. No...
... in fact it was more like Saki's true nature was a succubus, but she didn't know.
Keisuke's father imparted this secret knowledge only to Keisuke.
Beware the succubus, for once she tastes the seed of her prey, she desires it uncontrollably.
When she transforms in the moonlight, she makes her seduction!

Keisuke loves his tender, simple little sister. But now, he's also tempted by the vixen.

Keisuke faces a dilemma: which version of Saki will he be with? The choice is yours as the player. 

[edited from [DLsite English](http://www.dlsite.com/ecchi-eng/announce/=/product_id/RE158166.html)]

## Characters
### Tsukikawa Keisuke (月川 佳佑)
- **Gender:** Male
- **Hair:** Black, Short, Straight, Spiky Bangs, Pubic Hair
- **Body:** Teen, Slim, Pale
- **Clothes:** School Uniform
- **Eyes:** Hidden
- **Personality:** Ore
- **Role:** Non-blood-related Brother, Classmate, High School Student, Older Brother

### Saki (サキ)
- **Gender:** Female
- **Alias:** Saqi
- **Hair:** Brown, Twin Tails, Shoulder-length, Straight, Spiky Bangs
- **Body:** Teen, Pale, Inverted Nipples, Bat Wings, Demon Tail, Ram Horns, Huge Breasts
- **Clothes:** School Uniform, Pajamas, Hat, Evening Gloves, Miniskirt, Boots, Knee-high Socks, Thigh-high Stockings, Belt, Wedding Dress, Hair Flower, Panties, Bra, Turtleneck Sweater, Veil, Ribbon Hair Tie, Leggings, Choker, Ankle Boots, Halterneck Dress, Nipple Covers
- **Eyes:** Green, Tareme
- **Role:** Non-blood-related Sister, Succubus
- **Personality:** Third Person
- **Voiced by:** Katakura Hina

### Tsukikawa Saki (月川 紗紀)
- **Gender:** Female
- **Hair:** Brown, Twin Tails, Shoulder-length, Straight, Spiky Bangs
- **Body:** Teen, Pale, Inverted Nipples, Huge Breasts
- **Clothes:** School Uniform, Mini-dress, Pajamas, Evening Gloves, Boots, Knee-high Socks, Belt, Shawl, Sandals, Bikini, Panties, Bra, Turtleneck Sweater, Ribbon Hair Tie, Transparent, Pleated Skirt, String Ribbon Tie, Nightgown, Microskirt, Loafers, Open Cup Baby-doll
- **Eyes:** Green, Tareme
- **Role:** Non-blood-related Sister, High School Student, Younger Sister
- **Subject of:** Pregnancy
- **Engages in:** Cosplay, Lactation
- **Personality:** Naive, Third Person
- **Voiced by:** Katakura Hina

### Manabe Riri (真鍋 理璃)
- **Gender:** Female
- **Hair:** Violet, Long, Straight, Spiky Bangs, Parted to Side
- **Body:** Teen, Slim, Pale, Mole, Big Breasts
- **Clothes:** School Uniform, Knee-high Socks, Pleated Skirt, String Ribbon Tie, Loafers
- **Role:** Classmate, High School Student, Not a Virgin
- **Eyes:** Pink, Tsurime
- **Personality:** Atashi
- **Voiced by:** Misonoo Mei

### Riri (リリ)
- **Gender:** Female
- **Alias:** Lili
- **Hair:** Violet, Long, Straight, Spiky Bangs, Parted to Side
- **Body:** Teen, Slim, Pale, Mole, Bat Wings, Demon Tail, Naked Nipples, Ram Horns, Big Breasts
- **Clothes:** School Uniform, Latex, Bodystocking, Bridal Gauntlet
- **Eyes:** Pink, Tsurime
- **Role:** Not a Virgin, Succubus
- **Personality:** Atashi
- **Voiced by:** Misonoo Mei

## Shops
- [Official Website](http://www.orcsoft.jp/dwf001/index.html)
- [Steam](https://store.steampowered.com/app/2243980/)
- [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ158166.html)
- [Getchu](http://www.getchu.com/soft.phtml?id=1140732)

## Releases
### Japanese
- **2015-07-11**: Marshmallow☆Imouto☆Succubus☆ - Trial Edition - [Official website](http://www.orcsoft.jp/dwf001/download.html)
- **2015-07-24**: Marshmallow☆Imouto☆Succubus☆ - Package Edition - [Official website](http://www.orcsoft.jp/dwf001/index.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=22173)
- **2015-07-24**: Marshmallow☆Imouto☆Succubus☆ - Download Edition - [Official website](http://www.orcsoft.jp/dwf001/index.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=22173), [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ158166.html), [Gyutto](https://gyutto.com/i/item150434), [Gyutto](https://gyutto.com/i/item196357), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0118539/), [DL.Getchu](http://dl.getchu.com/i/item37606), [DMM](https://dlsoft.dmm.co.jp/detail/alb_0028/), [DMM](https://www.dmm.co.jp/dc/doujin/-/detail/=/cid=d_082415/)
- **2016-01-10**: Marshmallow☆Imouto☆Succubus☆ - DVDPG - [Getchu](http://www.getchu.com/soft.phtml?id=883946), [DMM](https://www.dmm.co.jp/mono/anime/-/detail/=/cid=50tcpg014/)
- **2017-03-31**: Marshmallow☆Imouto☆Succubus☆ - [Official website](https://hbox.jp/aff/prom/139483/top.php)
- **2018-12-21**: Marshmallow☆Imouto☆Succubus☆ - DVD Edition - [Getchu](http://www.getchu.com/soft.phtml?id=1026586)
- **2019-11-30**: Tsubomi Club Premium Collection Part 2 - DVDPG - [Official website](https://www.ktfactory.tv/tcpg-065), [Getchu](http://www.getchu.com/soft.phtml?id=1140732), [DMM](https://www.dmm.co.jp/mono/anime/-/detail/=/cid=50tcpg064/)
- **2023-09-22**: Marshmallow☆Imouto☆Succubus☆ - Censored Edition - [Official website](https://sekaiproject.com/game/marshmallow%e2%98%86imouto%e2%98%86succubus/), [Steam](https://store.steampowered.com/app/2243980/), [SteamDB](https://steamdb.info/app/2243980/info/)
- **2023-09-22**: Marshmallow☆Imouto☆Succubus☆ - [Denpasoft](https://denpasoft.com/product/marshmallow-imouto-succubus/)
- **2023-09-22**: Marshmallow☆Imouto☆Succubus☆ - 18+ DLC - [Denpasoft](https://denpasoft.com/product/marshmallow-imouto-succubus-18-dlc/)

### English
- **2023-09-22**: Marshmallow☆Imouto☆Succubus☆ - Censored Edition - [Official website](https://sekaiproject.com/game/marshmallow%e2%98%86imouto%e2%98%86succubus/), [Steam](https://store.steampowered.com/app/2243980/), [SteamDB](https://steamdb.info/app/2243980/info/)
- **2023-09-22**: Marshmallow☆Imouto☆Succubus☆ - [Denpasoft](https://denpasoft.com/product/marshmallow-imouto-succubus/)
- **2023-09-22**: Marshmallow☆Imouto☆Succubus☆ - 18+ DLC - [Denpasoft](https://denpasoft.com/product/marshmallow-imouto-succubus-18-dlc/)

### Chinese (simplified)
- **2023-09-22**: Marshmallow☆Imouto☆Succubus☆ - Censored Edition - [Official website](https://sekaiproject.com/game/marshmallow%e2%98%86imouto%e2%98%86succubus/), [Steam](https://store.steampowered.com/app/2243980/), [SteamDB](https://steamdb.info/app/2243980/info/)
- **2023-09-22**: Marshmallow☆Imouto☆Succubus☆ - [Denpasoft](https://denpasoft.com/product/marshmallow-imouto-succubus/)
- **2023-09-22**: Marshmallow☆Imouto☆Succubus☆ - 18+ DLC - [Denpasoft](https://denpasoft.com/product/marshmallow-imouto-succubus-18-dlc/)

### Indonesian
- **2023-12-29**: Marshmallow☆Imouto☆Succubus☆

### Russian
- **2024-03-20**: Marshmallow Imouto Succubus - [Official website](https://pornolab.net/forum/viewtopic.php?t=3070196)

## Tags
ADV, Non-blood-related Brother/Sister Incest, Brother/Sister Romance, Male Protagonist, Multiple Endings, Nukige, Protagonist's Non-blood-related Sister as a Heroine, High Sexual Content, Group Sex of One Male and Several Females, Pregnant Sex, Harem Ending, Succubus Heroine, Vibrators, Defloration, Sex in Public Places, Stockings, Twin Tail Heroine, Missionary Position, Sixty-nine, Sounds of Copulation, Internal Exhibition of Sex, Heroine with Bodystocking, Twin Blowjob, Lactation During Sex, Intercrural Sex, Multiple Penetration, Anilingus, Cunnilingus, Doggy Style, Female Ejaculation, Outdoor Sex, Heroine with Beauty Mark, Naked Sprites, Deepthroat, Anal Toys, Cowgirl, Sex in Water, Sitting Sex, Spoons, Ahegao, Beach, Kissing Scene, Marriage Ending, Background Moans, Humping, Twin Boobjob, Quickie Fix Position, Sex at School, Blowjob Duck Face, Masturbation with Object, Heroine with Inverted Nipples, Anal Fingering, Big Ass Heroine, Threesome, Heroine with Crotchless Clothing, Sex on a Beach, Single Boobjob, Single Handjob, Single Blowjob, Vaginal Masturbation, Anal Sex, Vaginal Fingering, High School Student Heroine, Sex with Protagonist Only, Heroine with Huge Breasts, Protagonist's Younger Sister as a Heroine, Heroine with Big Breasts

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---
*View the full details at [pinovel.net/v17849](https://pinovel.net/v17849).*

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