---
title: "Kono mama da to Otouto ga Techno Break de Shinjau kara Kozukuri!"
description: "My sisters who lived in America with mom after our parent's divorce suddenly came back! Moreover, it's \"masturbation prohibiton\" for me due to examination, but "
image: "https://t.vndb.org/cv/20/121620.jpg"
---

# Kono mama da to Otouto ga Techno Break de Shinjau kara Kozukuri!

![Kono mama da to Otouto ga Techno Break de Shinjau kara Kozukuri!](https://t.vndb.org/cv/20/121620.jpg)

**Alternative Title:** このままだと弟がテクノブレイクで死んじゃうから子作り！

**Developer:** Atelier Kaguya HonkyTonk Pumpkin

**Release date:** May 26, 2017

**Platform:** Windows

**Language:** Japanese, English

**Rating:** 7.7/10 (161 votes)

## Description
My sisters who lived in America with mom after our parent's divorce suddenly came back!
Moreover, it's "masturbation prohibiton" for me due to examination, but who would ever thought that day would be its lifting. My plan is ruined.
And as for my anxiety of our reunion after about 10 years is.....
Not good! This is not good!! Only one sentence can describe their growth. (....too erotic.....)
Is it because of their upbringing there? Coupled with their unrestricted lifestyle....I'm already....
And so I secretly confine myself to relieve myself but they overheard me.
"If it's like this, you're going to die from technobreak, what about impregnating us instead♪." 
What!! How has it come to this?!
Thus, the start of heart-pounding sex life a virgin with three hot nee-chan.

Adapted from http://www.getchu.com/soft.phtml?id=951264&gc=gc

## Characters
### Isojima Tatsuya (磯島 龍哉)
- **Gender:** Male
- **Body:** Teen, Phimosis, Small Penis
- **Role:** Full Brother, Nameable, Younger Brother

### Hayakawa Kimika (早川 希実華)
A very cute onee-san whose mind is hard to fathom.

- **Gender:** Female
- **Hair:** Blond, Twin Tails, Long
- **Body:** Teen, Huge Breasts
- **Eyes:** Amber
- **Personality:** Reserved, Relaxed, Brother Complex, Mischievous, Emotional, Assertive
- **Role:** Mother, Full Sister, Not a Virgin, Younger Sister, Older Sister
- **Subject of:** Pregnancy, Darker Nipples (Pregnancy)
- **Clothes:** Bikini, Santa Suit, Christmas Cap
- **Engages in:** Lactation
- **Voiced by:** Aoi Tokio

### Hayakawa Misaki (早川 岬)
A reliable and cheerful onee-san who is open to echiness much like a typical American. She got a dynamite body.

- **Gender:** Female
- **Hair:** Ahoge, Long, Straight, Orange
- **Body:** Pale, Young-adult, Huge Breasts
- **Role:** Full Sister, Not a Virgin, Older Sister
- **Subject of:** Pregnancy, Darker Nipples (Pregnancy)
- **Personality:** Honest, Brother Complex, Mischievous, Emotional, Assertive, Cheerful
- **Clothes:** Naked Apron
- **Eyes:** Garnet
- **Engages in:** Lactation
- **Voiced by:** Misaki Tomomi

### Hayakawa Yuina (早川 唯那)
Maybe due to her growing up in America, she's tolerant of ecchi things. She's kind, gentle and good with cooking.

- **Gender:** Female
- **Hair:** Waist Length+, Straight, Grey
- **Body:** Pale, Young-adult, Huge Breasts
- **Eyes:** Violet
- **Role:** Full Sister, Not a Virgin, Older Sister, Middle Sister
- **Personality:** Relaxed, Kind, Brother Complex, Mischievous, Emotional, Assertive
- **Subject of:** Pregnancy, Darker Nipples (Pregnancy)
- **Clothes:** One Piece Swimsuit
- **Engages in:** Lactation
- **Voiced by:** Hanazawa Sakura

## Shops
- [Official Website](http://www.a-kaguya.com/products_HP/kodukuri/index.html)
- [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ011034.html)
- [Getchu](http://www.getchu.com/soft.phtml?id=951264)

## Releases
### Japanese
- **2017-05-26**: Kono mama da to Otouto ga Techno Break de Shinjau kara Kozukuri! - Package Edition - [Official website](http://www.a-kaguya.com/products_HP/kodukuri/index.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=25091), [Getchu](http://www.getchu.com/soft.phtml?id=951264)
- **2017-05-26**: Kono mama da to Otouto ga Techno Break de Shinjau kara Kozukuri! - Download Edition - [Official website](http://www.a-kaguya.com/products_HP/kodukuri/index.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=25091), [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ011034.html), [Gyutto](https://gyutto.com/i/item192458), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0159476/), [DL.Getchu](http://dl.getchu.com/i/item4002199), [DMM](https://dlsoft.dmm.co.jp/detail/cveaa_0036/)

### English
- **2022**: Kono mama da to Otouto ga Techno Break de Shinjau kara Kozukuri! - [Official website](https://sugoivisualnovel.up.railway.app/vns/20966)
- **2026-04-15**: Kono mama da to Otouto ga Techno Break de Shinjau kara Kozukuri! - [Official website](https://htranslations.com/translation/kono-mama-da-to-otouto-ga-techno-break-de-shinjau-kara-kozukuri)

## Tags
ADV, Blood-related Brother/Sister Incest, Brother/Sister Romance, Male Protagonist, Multiple Endings, Nameable Protagonist, Nukige, Group Sex of One Male and Several Females, Pregnancy, Pregnant Sex, Under the Same Roof, Harem Ending, Female Domination, Missionary Position, Sixty-nine, Inbreeding, Triple Blowjob, Intercrural Sex, Cunnilingus, Balls Sucking, More Than Seven Endings, Romancing a Family, Brocon Heroine, Doggy Style, Female Ejaculation, Deepthroat, Siscon Protagonist, Cowgirl, Reverse Cowgirl, Sex in Water, Shimaidon Ending, Only Protagonist's Sisters as Heroine(s), Standing Sex, Sitting Sex, Mischievous Heroine, Kissing Scene, Gokkun, Background Moans, Reverse Missionary, Quickie Fix Position, Triple Boobjob, Sex Involving Smegma, Pantyjob, Breast Smothering, Adult Breast Sucking, Non-twin Heroine Sisters, Heroine with Huge Breasts, Sounds of Copulation, Only Non-Virgin Heroines, Bathroom Sex, French Kiss, Protagonist's Older Sister as a Heroine, Anal Sex, Sex with Protagonist Only, Protagonist's Full Sister as a Heroine, Outdoor Sex, Only Older Heroines, Naked Heroine with Apron, Only Blood-related Heroines, Sex in Front of an Audience, Vaginal Object Insertion, Sex on a Beach, Sexual Cosplay

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---
*View the full details at [pinovel.net/v20966](https://pinovel.net/v20966).*

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