---
title: "Siscon -Saiminjutsushi Onii-chan to Namaiki na Imouto-"
description: "One day, while taking a nap, the protagonist, Kyouhei, had a strange dream. In the dream, a self-proclaimed evil god said, \"I'll give you some kind of magic so "
image: "https://t.vndb.org/cv/75/29675.jpg"
---

# Siscon -Saiminjutsushi Onii-chan to Namaiki na Imouto-

![Siscon -Saiminjutsushi Onii-chan to Namaiki na Imouto-](https://t.vndb.org/cv/75/29675.jpg)

**Alternative Title:** 妹コン ―催眠術師お兄ちゃんとナマイキな妹―

**Aliases:** 妹（シス）コン ―催眠術師お兄ちゃんとナマイキな妹―

**Developer:** Atelier Sakura Mount Position

**Release date:** Jun 10, 2016

**Platform:** Windows, Website

**Language:** Japanese

**Rating:** 6.4/10 (32 votes)

## Description
One day, while taking a nap, the protagonist, Kyouhei, had a strange dream.
In the dream, a self-proclaimed evil god said, "I'll give you some kind of magic so you can conquer the world."
Kyouhei gave a half-hearted reply that it was just a dream.

When they finished speaking, he was shocked and his consciousness faded, and when he opened his eyes, his younger sister, Ririka, was standing next to him.

Ririka sternly scolded her older brother for sleeping carelessly.
Half-jokingly, he tried out the magic he apparently acquired on his strict younger sister, and his sister acted exactly as he instructed.
He then became convinced that the events in his dream were real.
Kyouhei had literally obtained the power of his dreams.

I'll use this power to conquer the world.

"Why does this have to be done by me?"

Instead, he plays all sorts of naughty pranks on her, like making her cook in her underwear, stripping her panties and using them as masturbation material, and forcing himself into the bathroom.

From [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0138533/)]

## Characters
### Tachibana Kyouhei (橘 杏平)
- **Gender:** Male
- **Role:** Older Brother
- **Personality:** Chuunibyou

### Tachibana Ririka (橘 梨々花)
- **Gender:** Female
- **Hair:** Blond, Waist Length+, Sidehair
- **Body:** Teen, Slim, Pale, Big Breasts
- **Clothes:** School Uniform, Sweater, Mini-dress, Hat, Miniskirt, Thigh-high Stockings, Detached Sleeves, Naked Apron, Ribbon Tie, Ankle Boots, Patterned Thigh-high Stockings
- **Engages in:** Cooking
- **Personality:** Tsundere, Brother Complex, Childishly Violent
- **Role:** High School Student, Younger Sister
- **Eyes:** Cyan
- **Voiced by:** Ishikawa Mii

## Shops
- [Official Website](http://www.at-sakura.net/mountposition/brand/001/index.html)
- [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ010225.html)
- [Getchu](http://www.getchu.com/soft.phtml?id=899291)

## Releases
### Japanese
- **2016-06-07**: Siscon -Saiminjutsushi Onii-chan to Namaiki na Imouto- Trial Edition - [Official website](http://www.at-sakura.net/mountposition/brand/001/down.html)
- **2016-06-10**: Siscon -Saiminjutsushi Onii-chan to Namaiki na Imouto- Download Edition - [Official website](http://www.at-sakura.net/mountposition/brand/001/index.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=23595), [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ010225.html), [Gyutto](https://gyutto.com/i/item169974), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0138533/), [DL.Getchu](http://dl.getchu.com/i/item1005556), [DMM](https://dlsoft.dmm.co.jp/detail/aquras_0087/)
- **2016-06-24**: Siscon -Saiminjutsushi Onii-chan to Namaiki na Imouto- Package Edition - [Official website](http://www.at-sakura.net/mountposition/brand/001/index.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=23595), [Getchu](http://www.getchu.com/soft.phtml?id=899291)
- **2022-04-21**: Siscon -Saiminjutsushi Onii-chan to Namaiki na Imouto- - [Official website](https://web.archive.org/web/20220421020118/https://oo.parts/title/3zCoaIQ9Ek2dSlD9uJvs)

## Tags
ADV, Male Protagonist, Family Life Comedy, Only a Single Heroine, Student Heroine, Under the Same Roof, Heroine with Zettai Ryouiki, Erotic Mind Control, Tsundere Heroine, Sexual Devices, Vibrators, Defloration, Only Virgin Heroines, Mind Control, Naked Heroine with Apron, Brocon Heroine, Colored Texts, Naked Sprites, Siscon Protagonist, Chuunibyou Protagonist, Only Protagonist's Sisters as Heroine(s), Mirror Sex, Only Younger Heroines, Anal Masturbation, Legwear Footjob, Single Footjob, Single Blowjob, Penile Masturbation, Pissing, Vaginal Fingering, Vaginal Gaping, High School Student Heroine, Heroine with Big Breasts, Only Blood-related Heroines, Doggy Style, Cowgirl, Protagonist's Full Sister as a Heroine, Protagonist's Younger Sister as a Heroine, Childishly Violent Heroine, Anal Fingering, Standing Sex, Blood-related Brother/Sister Incest, Butterfly, Vaginal Masturbation

## More Games from Atelier Sakura Mount Position
- [Siscon -Saiminjutsushi Onii-chan to Namaiki na Imouto-](https://pinovel.net/v19275)
- [Yankatsu! ~Yandere Futago to Hone no Zui made Icharabu Seikatsu Suru Hibi~](https://pinovel.net/v20201)
- [Junjou Yankee to Gyaruko-chan - Ecchi na Iroiro Ochiete Ageru♪](https://pinovel.net/v20453)
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---
*View the full details at [pinovel.net/v19275](https://pinovel.net/v19275).*

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