---
title: "Hahaoya Saimin Nikki ~Tamaki Sachiko no Ganbou~"
description: "Sachiko Tamaki, the mother of the protagonist, is devoted to his education, and her goal is to turn him into an elite. Sachiko had originally intended to become"
image: "https://t.vndb.org/cv/14/143314.jpg"
---

# Hahaoya Saimin Nikki ~Tamaki Sachiko no Ganbou~

![Hahaoya Saimin Nikki ~Tamaki Sachiko no Ganbou~](https://t.vndb.org/cv/14/143314.jpg)

**Alternative Title:** 母親催眠日記 ～環幸子の願望～

**Developer:** Bitter half

**Release date:** Apr 24, 2015

**Platform:** Windows

**Language:** Japanese

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

## Description
Sachiko Tamaki, the mother of the protagonist, is devoted to his education, and her goal is to turn him into an elite. Sachiko had originally intended to become a bureaucrat, but her marriage has closed the door to that goal.

Sachiko has been giving him a gifted education since he was a child. However, the overbearing, restricting, and simply painful life he leads fosters in him anger toward his mother and a distorted desire to make amends for his past resentment. 

The protagonist learns a special hypnotism from his bad friends and decides to use it to take revenge on his mother. 
What awaits him in the end?

[From [official site](http://www.lpv-gamesoft.com/bh/bihf006/index.html#spec)]

## Characters
### Tamaki Sachiko (環 幸子)
- **Gender:** Female
- **Hair:** Violet, Long
- **Eyes:** Brown
- **Body:** Pale, Adult, Overweight, Huge Breasts
- **Clothes:** Thigh-high Stockings, Skirt Suit
- **Personality:** Strict, Serious
- **Role:** Not a Virgin, Housewife, Title Character
- **Engages in:** Lactation
- **Subject of:** Pregnancy (by illegitimate partner)
- **Voiced by:** Abi Itsuki

## Shops
- [Official Website](http://www.lpv-gamesoft.com/bh/bihf007/)

## Releases
### Japanese
- **2015-04-24**: Hahaoya Saimin Nikki ~Tamaki Sachiko no Ganbou~ - [Official website](http://www.lpv-gamesoft.com/bh/bihf006), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=21939), [DMM](https://dlsoft.dmm.co.jp/detail/bitterh_0009/)
- **2015-06-26**: Hahaoya Saimin Nikki Otto no Inai Aida ni... Sansha no Monogatari - Package Edition - [Official website](http://www.lpv-gamesoft.com/bh/bihf007/)
- **2015-06-26**: Hahaoya Saimin Nikki Otto no Inai Aida ni... Sansha no Monogatari - Download Edition - [Official website](http://www.lpv-gamesoft.com/bh/bihf007/), [DMM](https://dlsoft.dmm.co.jp/detail/bitterh_0010/)

## Tags
Male Protagonist, Nukige, Group Sex of One Female and Several Males, Pregnant Sex, Blood-related Mother/Son Incest, Protagonist's Blood-related Mother as a Heroine, Missionary Position, Mind Control, Lactation During Sex, Cowgirl, Sitting Sex, Spoons, Bathroom Sex, Double Penetration (Group Sex), Single Boobjob, Single Handjob, Single Blowjob, Anal Sex, Heroine with Huge Breasts

## More Games from Bitter half
- [Hitozuma Un'yu Saimin NTR Ben](https://pinovel.net/v14596)
- [Hitozuma Un'yu Saimin NTR Ben ~Namatame Miki no Yokubou~](https://pinovel.net/v15312)
- [Hahaoya Saimin Nikki ~Otto no Inai Aida ni...~](https://pinovel.net/v16729)
- [Hitozuma Un'yu Saimin NTR Ben ~Sudou Junko no Yuuwaku~](https://pinovel.net/v16307)
- [Hahaoya Saimin Nikki ~Shiratsuka Emi no Baai~](https://pinovel.net/v16730)
- [Hahaoya Saimin Nikki ~Tamaki Sachiko no Ganbou~](https://pinovel.net/v17979)

---
*View the full details at [pinovel.net/v17979](https://pinovel.net/v17979).*

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```