---
title: "Yandere Onee-chan no Otouto Shiiku Nikki"
description: "The main character lives with his two sisters, Isora and Sakuya. He has recently finished high school, and is preparing to go to college. To do this, he’s plann"
image: "https://t.vndb.org/cv/03/29103.jpg"
---

# Yandere Onee-chan no Otouto Shiiku Nikki

![Yandere Onee-chan no Otouto Shiiku Nikki](https://t.vndb.org/cv/03/29103.jpg)

**Alternative Title:** ヤンデレお姉ちゃんの弟飼育日記

**Developer:** Heat-Soft

**Release date:** Apr 19, 2013

**Platform:** Windows

**Language:** Japanese

**Rating:** 6.1/10 (55 votes)

## Description
The main character lives with his two sisters, Isora and Sakuya. He has recently finished high school, and is preparing to go to college. To do this, he’s planning to move out and go into the city. However, his sisters don’t want him to, and they say that there’s a college right nearby that he can go to. However, he insists, saying that he needs to grow as a person, and to do that he needs to get out of his comfort zone and try new things.

However, his sisters really, REALLY don’t want him to leave. So they do something incredibly ridiculous, yet also incredibly effective:
They divide his room in two with iron bars and a jail cell door. They do this while he is asleep. 

Now, he’s locked in his bedroom, and he can’t get out. He literally can’t get out, the windows are barred, the room is barred, everything is barred. It’s a miniature jail and he’s on the inside of it. Isora visits him and informs him of something: They’re both in love with him. Not the brother-sister kind of love. REAL love. They were going to confess to him, but he decided to move away, and they just can’t have that, can they? So they built him a cage and locked him in it. They’re going to take care of him for the rest of his life, and they can all have "fun" together. Thus, the translated title of the game: "Yandere Big Sister’s Brother-Raising Diary".

[Edited from Dark Eye Translations]

## Characters
### Ariake Tadayuki (有明 忠之)
- **Gender:** Male
- **Aliases:** Takkun, Yuki-chan, たっくん, ゆきちゃん
- **Hair:** Brown, Short
- **Body:** Teen, Pale
- **Clothes:** Trousers, Suit, Jacket, Gloves, Belt
- **Role:** Father, Full Brother, Younger Brother, Kanendosei
- **Subject of:** Confinement, Being Drugged, Attempted Homicide
- **Personality:** Sister Complex
- **Engages in:** Graduation

### Ariake Isora (有明 いそら)
Isora is the older sister. Her gimmick is this: she hates herself. She hates herself so deeply that it’s ingrained in her. She compares herself to things like gum stuck on the sidewalk and pigs in pens. She legitimately thinks that anything good that happens to her must have an ulterior motive, and that she deserves everything bad that happens to her.

[From Dark Eye Translations]

- **Gender:** Female
- **Aliases:** Sora-nee, そら姉
- **Hair:** Black, Waist Length+, Straight, V Bangs, Sidehair
- **Body:** Teen, Slim, Pale, Medium Breasts
- **Engages in:** Cooking, Wedding, Attempted Murder, Suicide Attempt, Confinement
- **Eyes:** Red
- **Clothes:** Miniskirt, Pantyhose, Thigh-high Stockings, Wedding Dress, Nurse Uniform, Garter Belt Stockings, Pendant Necklace, Blouse, Veil, Nurse's Cap, Sports Jersey, High Heeled Boots
- **Personality:** Yandere, Low Self-esteem, Pessimist, Brother Complex, Watashi
- **Role:** Full Sister, Twin Sister, Domestic Partner, Nurse, Older Sister
- **Subject of:** Pregnancy, Attempted Homicide, Delusion
- **Items:** Stethoscope
- **Voiced by:** Kinohara Sayaka

### Ariake Sakuya (有明 咲耶)
Sakuya is the other sister. Her schtick is that she’s a very naïve person: she doesn’t know much about the world, but she knows a hell of a lot about flower-arrangement and being a good wife.

[From Dark Eye Translation]

- **Gender:** Female
- **Aliases:** Saku-nee, さく姉
- **Hair:** Violet, Wavy, Shoulder-length, V Bangs, Sidehair
- **Body:** Teen, Slim, Pale, Big Breast Sizes
- **Engages in:** Cooking, Cleaning, Teasing, Gardening, Childbirth, Attempted Murder, Confinement
- **Clothes:** Kimono, Ceremonial Japanese Clothing, Flip-flops, Furisode, Kanzashi
- **Items:** Knife
- **Personality:** Yandere, Naive, Energetic, Brother Complex
- **Role:** Mother, Full Sister, Twin Sister, Domestic Partner, Yamato Nadeshiko, Housewife, Antagonist, Middle Sister
- **Subject of:** Teasing
- **Eyes:** Garnet, Tareme
- **Voiced by:** Mahilo

## Shops
- [Official Website](http://www.heat-soft.com/yanane/)
- [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ007657.html)

## Releases
### Japanese
- **2013-04-13**: Yandere Onee-chan no Otouto Shiiku Nikki - Trial Edition - [Official website](http://www.heat-soft.com/yanane/download.html)
- **2013-04-19**: Yandere Onee-chan no Otouto Shiiku Nikki - Package Edition - [Official website](http://www.heat-soft.com/yanane/), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=18121)
- **2013-04-19**: Yandere Onee-chan no Otouto Shiiku Nikki - Download Edition - [Official website](http://www.heat-soft.com/yanane/), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=18121), [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ007657.html), [Gyutto](https://gyutto.com/i/item102985), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0081333/), [DL.Getchu](http://dl.getchu.com/i/item1004288), [DMM](https://dlsoft.dmm.co.jp/detail/kaku_0068/)

## Tags
ADV, Yamato Nadeshiko Heroine, Blood-related Brother/Sister Incest, Brother/Sister Romance, Male Protagonist, Yandere Heroine, Pregnancy, Under the Same Roof, Heroine with Psychological Problems, Unlockable Harem Ending, Female Domination, Vibrators, Defloration, Side Portraits, Only Virgin Heroines, Wedding, Sixty-nine, Twin Blowjob, Inbreeding, Intercrural Sex, Heroine with Kimono, Brocon Heroine, Naked Sprites, Threesome Ending, Siscon Protagonist, Cowgirl, Jealousy, Only Protagonist's Sisters as Heroine(s), Bathroom Sex, Tribadism on Penis, Confinement, Protagonist's Older Sister as a Heroine, Cunnilingus, Protagonist's Full Sister as a Heroine, Anal Sex, Heroine with Big Breasts, Only Older Heroines, Only Blood-related Heroines, Doggy Style, Onahole, Missionary Position, Group Sex of One Male and Several Females, Twin Boobjob, Ball-cupping, Balls Sucking, Sex in Public Places, Single Boobjob, Single Blowjob, Sitting Sex, Handcuffed Sex, Sex in Water, Facesitting, Single Handjob, Lesbian Sex, Stockings, Hidden Vibrator, Reverse Missionary, Twin Sisters as Heroines, Twincest, Bondage, Heroine with Tights, Sexual Cosplay, Blood-related Sister/Sister Incest, Strangulation Sex, Vaginal Masturbation, Anal Toys, Quickie Fix Position, Piledriver, Energetic Heroine, Single Footjob

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---
*View the full details at [pinovel.net/v12272](https://pinovel.net/v12272).*

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