---
title: "Chikyuu no Heiwa o Mamoru tame!!"
description: "Main character's father who works as a researcher of the Earth Defense Force, writes a letter declaring his intent to remarry. Protagonist suddenly has to take "
image: "https://t.vndb.org/cv/70/7670.jpg"
---

# Chikyuu no Heiwa o Mamoru tame!!

![Chikyuu no Heiwa o Mamoru tame!!](https://t.vndb.org/cv/70/7670.jpg)

**Alternative Title:** 地っ球の平和をま～もるためっ！！

**Aliases:** Chikkyuu no Heiwa o Maamoru tame!!

**Developer:** C's Ware

**Release date:** Feb 28, 2003

**Platform:** Windows

**Language:** Japanese

**Rating:** 5.0/10 (avg, 4 votes)

## Description
Main character's father who works as a researcher of the Earth Defense Force, writes a letter declaring his intent to remarry. Protagonist suddenly has to take care of two young girls.

The next letter father sends is an appeal to prepare for aliens invasion. What the hell is going on here? 

[From [vndbreview](https://vndbreview.blogspot.com/2019/05/vn-of-month-february-2003-routes.html)]

## Characters
### Shintarou (慎太郎)
- **Gender:** Male
- **Hair:** Brown, Short
- **Eyes:** Brown, Hosome
- **Body:** Pale, Young-adult
- **Clothes:** T-shirt, Dog Tags, Watch, Baggy Pants
- **Personality:** Ore
- **Role:** Son, Friend, Poor, University Student

### Akashina Eri (明科 江理)
- **Gender:** Female
- **Hair:** Blond, Twin Tails, Straight, Eye Covering, Sidehair
- **Body:** Slim, Pale, Kid, Small Breast Sizes
- **Clothes:** School Uniform, Dress, Ribbon Hair Tie, Oversized Clothing
- **Eyes:** Amber, Hidden, Tareme
- **Role:** Non-blood-related Sister, Younger Sister
- **Voiced by:** Nishida Komugi

### Akashina Mari (明科 麻理)
- **Gender:** Female
- **Hair:** Red, Short
- **Body:** Slim, Pale, Kid, Small Breast Sizes
- **Clothes:** School Uniform, Miniskirt, Thigh-high Stockings, Beret, Watch
- **Eyes:** Red, Tareme
- **Role:** Non-blood-related Sister, Older Sister
- **Voiced by:** Uchimura Milk

### HA-RU-KA (はるか)
- **Gender:** Female
- **Aliases:** Haruka, コードネーム“HA-RU-KA”, Codename "HA-RU-KA"
- **Hair:** Pink, Twin Tails
- **Body:** Slim, Pale, Kid, Flat Chest
- **Eyes:** Red, Tareme
- **Clothes:** Suit, Necktie, Rubber Band With Beads, Oversized Clothing
- **Role:** Spy
- **Voiced by:** Tsuoi Sonoka

### Sagami Akane (相模 茜)
- **Gender:** Female
- **Hair:** Brown, Shoulder-length, Spiky Bangs, Parted in Middle
- **Eyes:** Brown
- **Body:** Teen, Slim, Pale
- **Clothes:** Earrings, Miniskirt, Hoodie, Tank Top, Bracelet
- **Role:** University Student
- **Personality:** Cheerful
- **Voiced by:** Kusaka Chizuru

### Tanimura Shiho (谷村 史歩)
- **Gender:** Female
- **Hair:** Blond, Long, Straight, No Bangs, Parted to Side
- **Body:** Pale, Young-adult, Big Breast Sizes, Makeup
- **Eyes:** Amber
- **Clothes:** Glasses, Skirt, Pendant Necklace, Blouse
- **Role:** Neighbor
- **Voiced by:** Yuki-Lin

### Alien (宇宙人)
- **Gender:** Male
- **Alias:** Uchuujin
- **Eyes:** Hidden
- **Body:** Adult
- **Clothes:** Catsuit, Mask, Gloves, Belt, Helmet, Goggles, Cape
- **Personality:** Strange, Mysterious
- **Voiced by:** Atono Matsuri

### Odaiba Suguru (御台場 卓)
- **Gender:** Male
- **Hair:** Black, Short, No Bangs, Slicked Back
- **Body:** Pale, Young-adult
- **Clothes:** Uniform, Gloves
- **Items:** Sword
- **Eyes:** Black, Hosome
- **Role:** Friend, University Student
- **Personality:** Patriotic, Strange
- **Voiced by:** Fuji Bakuhatsu

### Shibazaki Hiroshi (柴崎 博士)
- **Gender:** Male
- **Hair:** Black, Short
- **Eyes:** Black, Hosome
- **Body:** Adult
- **Clothes:** Glasses, Necktie, Lab Coat
- **Role:** Father, Medical Doctor
- **Voiced by:** Joe Bullman

## Shops
- [Official Website](https://web.archive.org/web/20030806103015/http://www.csware.co.jp/products/pint/index.html)
- [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ001764.html)
- [Getchu](http://www.getchu.com/soft.phtml?id=23693)

## Releases
### Japanese
- **2003-02-28**: Chikyuu no Heiwa o Mamoru tame!! Vol.1 - [Official website](https://web.archive.org/web/20030806103015/http://www.csware.co.jp/products/pint/index.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=2618), [Getchu](http://www.getchu.com/soft.phtml?id=20907)
- **2003-04-25**: Chikyuu no Heiwa o Mamoru tame!! Vol.2 - [Official website](https://web.archive.org/web/20030806103015/http://www.csware.co.jp/products/pint/index.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=2712), [Getchu](http://www.getchu.com/soft.phtml?id=22908)
- **2003-06-27**: Chikyuu no Heiwa o Mamoru tame!! Vol.3 - [Official website](https://web.archive.org/web/20030806103015/http://www.csware.co.jp/products/pint/index.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=2847), [Getchu](http://www.getchu.com/soft.phtml?id=23692)
- **2003-10-10**: Chikyuu no Heiwa o Mamoru tame!! Vol.4 - [Official website](https://web.archive.org/web/20030806103015/http://www.csware.co.jp/products/pint/index.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=3033), [Getchu](http://www.getchu.com/soft.phtml?id=23693)
- **2006-03-18**: Chikyuu no Heiwa o Mamoru tame!! Vol.1 - Download Edition - [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ001761.html), [Gyutto](https://gyutto.com/i/item9990), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0005552/), [DL.Getchu](http://dl.getchu.com/i/item1001055), [DMM](https://dlsoft.dmm.co.jp/detail/hobc_0105/)
- **2006-03-19**: Chikyuu no Heiwa o Mamoru tame!! Vol.2 - Download Edition - [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ001762.html), [Gyutto](https://gyutto.com/i/item9989), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0005562/), [DL.Getchu](http://dl.getchu.com/i/item1001056), [DMM](https://dlsoft.dmm.co.jp/detail/hobc_0106/)
- **2006-03-21**: Chikyuu no Heiwa o Mamoru tame!! Vol.3 - Download Edition - [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ001763.html), [Gyutto](https://gyutto.com/i/item9988), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0005574/), [DL.Getchu](http://dl.getchu.com/i/item1001057), [DMM](https://dlsoft.dmm.co.jp/detail/hobc_0107/)
- **2006-03-21**: Chikyuu no Heiwa o Mamoru tame!! Vol.4 - Download Edition - [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ001764.html), [Gyutto](https://gyutto.com/i/item9987), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0005575/), [DL.Getchu](http://dl.getchu.com/i/item1001058), [DMM](https://dlsoft.dmm.co.jp/detail/hobc_0108/)

## Tags
Sexual Content, Comedy, Science Fiction, Male Protagonist, Loli Heroine, Lolicon, Heroine with Glasses, Spy Heroine, Adult Heroine, Big Breast Sizes Heroine, Protagonist with a Face, Twin Tail Heroine, University Student Heroine, Heroine Sisters, Non-twin Heroine Sisters, Protagonist's Non-blood-related Sister as a Heroine, Non-blood-related Brother/Sister Incest

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- [Mikan](https://pinovel.net/v5715)
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- [Chikyuu no Heiwa o Mamoru tame!!](https://pinovel.net/v6130)

---
*View the full details at [pinovel.net/v6130](https://pinovel.net/v6130).*

```json
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```