---
title: "Sekai Seifuku Kanojo"
description: "Yukito is waken up every morning by his cute osananajimi Yumeko. Normally one would feel blessed to be in such a situation, but she’s actually a mad scientist w"
image: "https://t.vndb.org/cv/00/109100.jpg"
---

# Sekai Seifuku Kanojo

![Sekai Seifuku Kanojo](https://t.vndb.org/cv/00/109100.jpg)

**Alternative Title:** 世界征服彼女

**Aliases:** Sekajyo, Sekai Seifuku Kanojo - the world is mine.

**Developer:** Navel

**Release date:** Dec 24, 2010

**Platform:** Windows, Switch

**Language:** Japanese

**Rating:** 7.5/10 (77 votes)

## Description
Yukito is waken up every morning by his cute osananajimi Yumeko. Normally one would feel blessed to be in such a situation, but she’s actually a mad scientist who wants to take over the world! She would even create a robot just for this purpose, scaring the heads of state around the world to surrender without a fight.

All he wished for is to live a peaceful life until graduation. Then he saw her at a press conference on TV declaring that she will be taking over the world before the end of the year. In the commotion that follows, another girl named Ako transfers into the school to stop her. Will Yumeko be stopped by New Year’s Eve or will his dream of a peaceful life vanish forever?

[From [Hau~ Omochikaeri!](https://omochikaeri.wordpress.com/2010/12/11/december-2010-eroge-releases/)]

## Characters
### Hattori Yukito (服部 征人)
- **Gender:** Male
- **Aliases:** Yuu-chan, Yuu-kun
- **Clothes:** School Uniform
- **Personality:** Donkan, Kind
- **Engages in:** Cooking, Graduation, Moving, Bridal Carry, Turndown
- **Role:** Son, Domestic Partner, Boyfriend, Childhood Friend, Classmate, Senpai, Kouhai, Neighbor, University Student, High School Student

### Hananomiya Ako (花之宮 亜子)
- **Gender:** Female
- **Measurements:** Height: 158cm, Weight: 42kg, Bust-Waist-Hips: 82-54-80cm, C cup
- **Birthday:** 29 November
- **Hair:** Black, Ahoge, Ponytail, Waist Length+, Straight
- **Body:** Slim, Pale
- **Clothes:** School Uniform, Coat, Keikogi, Scarf, Hakama, Miko's Dress, Bra, Clothing with Ribbons, Ribbon Hair Accessory, Furisode
- **Engages in:** Cooking, Kendo
- **Personality:** Ignorant, Kind, Patriotic, Old-fashioned
- **Role:** Senpai, Kouhai, Transfer Student, Yamato Nadeshiko, Popular, Older Sister
- **Subject of:** Arranged Marriage
- **Eyes:** Pink, Garnet, Tareme
- **Voiced by:** Gogyou Nazuna

### Kona Nako (古奈 菜子)
- **Gender:** Female
- **Measurements:** Height: 150cm, Weight: 45kg, Bust-Waist-Hips: 80-54-82cm
- **Birthday:** 15 August
- **Hair:** Twin Tails, Short, Grey, Spiky Bangs
- **Role:** Orphan, Girlfriend, Spy, Senpai, Mecha Pilot, Transfer Student
- **Engages in:** Cooking, Investigation
- **Personality:** Stoic, Strange, Loyal, Taciturn
- **Subject of:** Hospitalization
- **Eyes:** Garnet
- **Clothes:** Ribbon Tie, Tracksuit
- **Voiced by:** Sawada Natsu

### Munemoto Tsubakiko (棟本 椿子)
Tsubakiko is a girl that hates guys.

[spoiler] Tsubakiko was badly bullied by boys in elementary school after her name was accidentally misread to the class as "Chinko," which only escalated further after her severe reaction to it. She became apprehensive towards men as a result, but did not harbour deeper feelings of repulsion until middle school, when she overheard a male senpai she trusted sexualising her with another boy. 

She transferred away to an all girls school right after, but eventually came to idolise Yumeko, who she saw on television, as Yumeko was more powerful than men. After time, she began attending the same school as Yumeko's kouhai.  [/spoiler]

[spoiler] In Navel*Plus Tsubakiko and Yukito are living together and Tsubakiko is now a senior in her school. She is also revealed to be an older sister now. [/spoiler]

- **Gender:** Female
- **Aliases:** Bakki, Chinko
- **Measurements:** Height: 145cm, Weight: 40kg, Bust-Waist-Hips: 92-56-82cm
- **Birthday:** 8 February
- **Hair:** Blue, Ahoge, Long, Straight, Side Tail
- **Clothes:** School Uniform, Pajamas, Scarf, Necklace, Blindfold, Ribbon Tie, Ribbon Hair Tie, School Swimsuit, Santa Suit, Christmas Cap
- **Engages in:** Cooking, Moving
- **Eyes:** Blue
- **Subject of:** Bullying, Androphobia, Bridal Carry
- **Role:** Daughter, Domestic Partner, Girlfriend, Schoolmate, Senpai, Kouhai, High School Student, Kanban Musume, Older Sister
- **Personality:** Kind, Misandrist
- **Body:** Big Breast Sizes
- **Voiced by:** Moriya Misono

### Touno Sakurako (冬野 桜子)
- **Gender:** Female
- **Measurements:** Height: 156cm, Weight: 46kg, Bust-Waist-Hips: 81-59-82cm
- **Birthday:** 14 March
- **Hair:** Blond, Shoulder-length
- **Eyes:** Brown
- **Clothes:** Headband, Scarf, Necklace, Ribbon Hair Tie
- **Role:** Girlfriend, Class President, Classmate
- **Personality:** Kind, Nature Lover, Docile
- **Items:** Handbag
- **Engages in:** Graduation, Turndown
- **Voiced by:** Takanashi Akira

### Yamino Yumeko (闇野 夢子)
- **Gender:** Female
- **Alias:** Yumeko-chan
- **Measurements:** Height: 162cm, Weight: 48kg, Bust-Waist-Hips: 85-58-84cm
- **Birthday:** 30 January
- **Hair:** Ahoge, Ponytail, Twin Tails, Waist Length+, Straight, Orange, Sidehair, Hair Loopies
- **Body:** Teen, Slim, Pale
- **Clothes:** School Uniform, Necktie
- **Eyes:** Blue
- **Personality:** Deredere, Selfish, Genius, Immature
- **Role:** Girlfriend, Childhood Friend, Classmate, Senpai, Kouhai, Neighbor, Mecha Pilot, Inventor
- **Subject of:** Turndown
- **Engages in:** Manipulation
- **Voiced by:** Touno Ran

### Almendra (アルメンドラ)
- **Gender:** Female
- **Aliases:** Mel, sugimura konoe(杉村近衛)
- **Measurements:** Height: 172cm, Weight: 52kg, Bust-Waist-Hips: 85-59-82cm
- **Birthday:** 1 November
- **Hair:** Short, Straight, Green
- **Eyes:** Blue
- **Role:** Bodyguard
- **Personality:** Loyal
- **Voiced by:** Oohana Don

### Hananomiya Yoshiko (花之宮 良子)
- **Gender:** Female
- **Measurements:** Height: 152cm, Weight: 43kg, Bust-Waist-Hips: 74-54-78cm
- **Birthday:** 3 March
- **Hair:** Black, Twin Tails, Long, Spiky Bangs, Parted to Side, Sidehair
- **Personality:** Ignorant, Stubborn, Naive, Docile
- **Eyes:** Garnet
- **Role:** Younger Sister
- **Clothes:** Ribbon Hair Tie
- **Voiced by:** Haruka Umi

### Ise Shinjuurou (伊瀬 新十郎)
- **Gender:** Male
- **Hair:** Moustache, Grey
- **Eyes:** Blue
- **Role:** Secret Identity, Premier
- **Voiced by:** Tokoro Takashi

### Munemoto Himeko (棟本 姫子)
Tsubakiko Mother and is mentioned [spoiler] to be pregnant in Navel*Plus. She does not make an appearance but she is mentioned by Tsubakiko. [/spoiler]

- **Gender:** Female
- **Measurements:** Height: 151cm, Weight: 43kg, Bust-Waist-Hips: 93-60-86cm
- **Birthday:** 15 May
- **Hair:** Blue, Waist Length+, Side Tail
- **Eyes:** Blue
- **Role:** Mother, Shopkeeper
- **Subject of:** Pregnancy
- **Body:** Big Breast Sizes, Younger Appearance
- **Personality:** Immature
- **Voiced by:** Kimura Ayaka

### Takeno Satoko (竹野 里子)
- **Gender:** Female
- **Measurements:** Height: 167cm, Weight: 55kg, Bust-Waist-Hips: 86-61-85cm
- **Birthday:** 14 September
- **Hair:** Red, Long
- **Eyes:** Brown
- **Role:** Teacher, Homosexual
- **Voiced by:** Aoyama Yukari

### Yamano Kinoko (山野 希乃子)
- **Gender:** Female
- **Measurements:** Height: 155cm, Weight: 48kg, Bust-Waist-Hips: 88-60-89cm
- **Birthday:** 30 September
- **Eyes:** Green
- **Clothes:** Glasses, Hair Ribbon, Ribbon Hair Tie
- **Role:** Teacher
- **Hair:** Orange
- **Voiced by:** Toono Soyogi

### Yashiki Momoharu (矢式 百春)
- **Gender:** Male
- **Measurements:** Height: 178cm, Weight: 65kg
- **Birthday:** 30 March
- **Hair:** Blond, Curtained, Shoulder-length, Eye Covering, Spiky Bangs, Parted to Side
- **Body:** Teen, Slim, Pale
- **Clothes:** School Uniform, Necktie
- **Eyes:** Blue, Hosome
- **Role:** Friend, Classmate
- **Personality:** Strange
- **Voiced by:** Izumi Kikunosuke

### Yasoshima Kosame (八十島 虎鮫)
- **Gender:** Male
- **Hair:** Brown, Beard
- **Personality:** Pervert
- **Clothes:** Military Uniform
- **Voiced by:** Big Bang Heita

### Masato (真聡)
A boy who appears in a lot of [url=/p13]Navel[/url] and [url=/p500]Basil[/url] games, and mischievously lifts the skirts of the heroines.

[adapted from [url=http://danbooru.donmai.us/wiki/show?title=masato_%28navel%29]Danbooru Wiki[/url]]

- **Gender:** Male
- **Aliases:** まさと, Masato
- **Hair:** Blue, Short, Straight, Spiky Bangs
- **Body:** Slim, Pale, Kid
- **Personality:** Boku, Pervert, Mischievous, Opposite Gender Voiced
- **Engages in:** Teasing, Not Sexually Involved
- **Eyes:** Itome

## Shops
- [Official Website](http://project-navel.com/sekajyo/)
- [Getchu](http://www.getchu.com/soft.phtml?id=720141)

## Releases
### Japanese
- **2010-10-24**: Sekai Seifuku Kanojo - Trial Edition - [Official website](http://www.project-navel.com/sekajyo/special.html)
- **2010-12-24**: Sekai Seifuku Kanojo - Limited Edition - [Official website](http://www.project-navel.com/sekajyo/), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=13529), [Getchu](http://www.getchu.com/soft.phtml?id=675618)
- **2011-10-28**: Sekai Seifuku Kanojo - Standard Edition - [Official website](http://project-navel.com/sekajyo/), [Getchu](http://www.getchu.com/soft.phtml?id=720141)
- **2019-03-15**: Sekai Seifuku Kanojo -Standerd Edition- Download Edition - [Official website](http://project-navel.com/sekajyo/), [DMM](https://dlsoft.dmm.co.jp/detail/navel_0011/)
- **2025-05-22**: Sekai Seifuku Kanojo - Regular Edition - [Official website](https://www.entergram.co.jp/sekajyo/), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=37565), [PlayAsia](https://www.play-asia.com/13/70i3bf)
- **2025-05-22**: Sekai Seifuku Kanojo - Limited Edition - [Official website](https://www.entergram.co.jp/sekajyo/), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=37565), [PlayAsia](https://www.play-asia.com/13/70i3bh)
- **2025-05-22**: Sekai Seifuku Kanojo - Download Edition - [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=37565), [Nintendo (JP)](https://store-jp.nintendo.com/item/software/D70010000083334)

## Tags
Sexual Content, ADV, Comedy, Genius Heroine, Male Protagonist, Enforced Playing Order, Ojousama Heroine, Protagonist's Childhood Friend as a Heroine, Spy Heroine, Love Triangle, Mecha, Skip Scenes, Donkan Protagonist, Childhood Promise, Protagonist's Kouhai as a Heroine, Emotionless Heroine, Protagonist with a Face, Winter, Scientist Heroine, No Common Sense Heroine, Androphobic Heroine, Lots of Choices, Heroine with Ahoge, Mad Scientist Support Character, More Than Seven Endings, Central Heroine, Comedic Sex Scenes, High School Student Heroine

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---
*View the full details at [pinovel.net/v3200](https://pinovel.net/v3200).*

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