---
title: "Koiken Otome"
description: "A long time ago, unknown beings known as Kotona invaded Earth in search of food. Humans were unable to repel them until after a few years, some people gained sp"
image: "https://t.vndb.org/cv/50/88750.jpg"
---

# Koiken Otome

![Koiken Otome](https://t.vndb.org/cv/50/88750.jpg)

**Alternative Title:** 恋剣乙女

**Developer:** Eufonie

**Release date:** Dec 21, 2012

**Platform:** Windows

**Language:** English, Japanese, Chinese (simplified)

**Rating:** 6.7/10 (1761 votes)

## Description
A long time ago, unknown beings known as Kotona invaded Earth in search of food. Humans were unable to repel them until after a few years, some people gained special abilities known as ‘douryoku’ which allowed them to exterminate the Kotona and return peace to the world.

Now, Seiichi attends the super-elite Kashinomori Academy which trains people with douryoku in preparation for another attack by the Kotona. However, even though he has great power, he doesn’t have the ability to manifest it, leading to him being labelled as ‘most useless one’. The rest of the students in his class all had great skill, but in particular one girl caught his attention. Akane had average powers even though she came from a distinguished family, so she trained hard daily to improve her skills. Watching her, he can’t help but want to help her[...]

[From [Hau~ Omochikaeri!](http://omochikaeri.wordpress.com/2012/12/01/december-2012-eroge-releases/)]

## Characters
### Ooba Seiichi (大場 誠一)
- **Gender:** Male
- **Hair:** Black, Short, Spiky, Spiky Bangs
- **Body:** Teen, Slim, Pale
- **Clothes:** School Uniform
- **Items:** Sword
- **Personality:** Donkan, Hard Worker, Romantically Indecisive, Friendly, Kind, Stubborn, Brave, Closet Pervert
- **Role:** Warrior, Betrothed, Boyfriend, Friend, Childhood Friend, Schoolmate, Classmate, High School Student, Superhuman, Popular, Lonely, Prisoner
- **Engages in:** Swordsmanship, Fighting, Teasing, Unarmed Fighting, Competition, Escape From Confinement, Marriage Proposal
- **Eyes:** Amber, Tsurime
- **Subject of:** Bullying, Wounding, Confinement, Human Subject Research

### Kamishiro Touko (神代 透子)
One of the Protagonist's Classmate and the Strongest one of his Class on top of that.
Touko Uses a Sword and Severe Ice Abilitys.
[Spoiler]Just like the Protagonist she was also asked by Yves to change the school.[/Spoiler]

- **Gender:** Female
- **Measurements:** Height: 162cm, Weight: 49kg, Bust-Waist-Hips: 79-59-82cm
- **Hair:** Violet, Waist Length+, Straight, Sidehair
- **Body:** Teen, Slim, Pale, Medium Breasts
- **Clothes:** School Uniform, Glasses, Jacket, Miniskirt, Jeans, Thigh-high Stockings, Belt, Tank Top, Clothing with Ribbons, Ribbon Hair Accessory, Waitstaff Uniform
- **Role:** Student, Girlfriend, Friend, Childhood Friend, Schoolmate, Classmate, High School Student, Dog, Prisoner, Cryokinetic
- **Engages in:** Swordsmanship, Fighting, Cosplay, Competition, Escape From Confinement, Infiltration
- **Eyes:** Amber, Tsurime
- **Personality:** Secretive, Kuudere, Stoic, Genius, Protective, Loyal, Jealous, Watashi, Blunt
- **Items:** Katana
- **Subject of:** Confinement, Marriage Proposal
- **Voiced by:** Inoue Hana

### Someya Yuzu (染谷 柚)
The childhood friend of Seichi, Koiken Otome's protagonist. Since she herself is rather weak, she desires nothing more than to help others to reach their absolute best. [Spoiler]This leads to self-esteem issues that come into play during her route.[/Spoiler]

- **Gender:** Female
- **Measurements:** Height: 155cm, Weight: 42kg, Bust-Waist-Hips: 85-55-83cm
- **Hair:** Blond, Wavy, Shoulder-length, Parted in Middle, Sidehair
- **Body:** Teen, Slim, Pale, Big Breasts
- **Clothes:** School Uniform, Pajamas, Headband, Miniskirt, Thigh-high Stockings, Lab Coat, Tank Top, Hair Flower, Towel, Ribbon Tie, Ribbon Hair Accessory, Waitstaff Uniform, Off-The-Shoulder Shirt, Latex Gloves
- **Personality:** Hard Worker, Hotblooded, Secretive, Deredere, Airhead, Shy, Low Self-esteem, Timid, Kind, Clumsy, Smart, Loyal, Emotional, Curious, Third Person, Flustered, Desu
- **Role:** Orphan, Girlfriend, Friend, Childhood Friend, Scientist, Schoolmate, High School Student, Healer, Prisoner, Researcher, Inventor
- **Engages in:** Cooking, Fighting, Kidnapping, Moving
- **Eyes:** Amber, Tareme
- **Subject of:** Teasing, Being Drugged, Piggyback Ride
- **Voiced by:** Shirayuki Midori

### Yasukuni Akane (安国 茜)
Akane had average powers even though she came from a distinguished family, so she trained hard daily to improve her skills. Watching her, The main Protagonist can’t help but want to help her.
She is a Classmate of the Protagonist who uses a Sword alongside with Fire-Abilities and was the first Girl which appeared in the game.

- **Gender:** Female
- **Measurements:** Height: 165cm, Weight: 50kg, Bust-Waist-Hips: 87-56-83cm
- **Hair:** Red, Ponytail, Waist Length+, Intake, Spiky Bangs, Sidehair
- **Body:** Teen, Slim, Pale, Scar, Big Breasts
- **Clothes:** School Uniform, Kimono, Cross Necklace, Miniskirt, Shorts, Thigh-high Stockings, Wedding Dress, Naked Apron, Bracelet, Ribbon Hair Tie, Waitstaff Uniform, Kemonomimi Hood
- **Personality:** Hard Worker, Hotblooded, Friendly, Honorable, Refined, Stubborn, Loyal, Serious, Jealous, Watashi, Ambitious, Sensitive
- **Engages in:** Fighting, Competition, Wedding, Escape From Confinement
- **Subject of:** Amnesia, Confinement, Disappointment, Marriage Proposal
- **Eyes:** Amber
- **Role:** Girlfriend, Friend, Childhood Friend, Rival, Noble, Schoolmate, Classmate, High School Student, Superhuman, Famous, Ojousama
- **Items:** Greatsword
- **Voiced by:** Akane Ren

### Yves Elaine Austin (イヴ・エレイン・オースティン)
Yves hails from the Austin family, which is both a very wealthy and powerful family. She is an "SS Douryoku" user from the Douryoku Academy "Saint David's", which is a rival academy to that which our Protagonist is enrolled.
Her Douryoku type is Life Force, more specifically is her specialty the manipulation of plants and other flora, such as making seeds instantly sprout to enormous size, and using them for both offense and defense in varies ways.
She is skilled in swordsmanship, where she uses her legendary rapier "Rapir Ruze", which has been passed down within her family for generations.
Her ancestor helped to defeat the last of the Kotona with "Rapir Ruze", together with Akane's ancestor, they became famous from that feat.

Shoe size: 29 CM / 45

- **Gender:** Female
- **Alias:** Eve
- **Measurements:** Height: 149cm, Weight: 37kg, Bust-Waist-Hips: 71-51-72cm
- **Hair:** Blond, Twin Tails, Long, Intake, Ringlet, Sidehair
- **Body:** Teen, Slim, Pale, Makeup, Small Breasts
- **Clothes:** School Uniform, Thigh-high Stockings, Wedding Dress, Ribbon Hair Tie, Baby-doll, Lace Lingerie
- **Role:** Warrior, Wife, Betrothed, Girlfriend, Friend, Childhood Friend, Rival, Teammate, Wealthy, High School Student, Superhuman, Coach, Transfer Student, Popular, Famous, Honor Student, Healer, Prisoner, Ojousama
- **Engages in:** Swordsmanship, Fighting, Self-sacrifice, Seduction, Competition, Wedding, Duel, Escape From Confinement
- **Eyes:** Blue, Tareme
- **Personality:** Pretending, Selfish, Honorable, Arrogant, Refined, Stubborn, Nature Lover, Confident, Watakushi, Jealous
- **Subject of:** Confinement
- **Items:** Rapier
- **Voiced by:** Moriya Misono

### Chiyoda Mari (千代田 麻里)
- **Gender:** Female
- **Measurements:** Height: 137cm, Weight: 33kg
- **Hair:** Brown, Twin Tails, Waist Length+, Straight, Sidehair
- **Body:** Teen, Slim, Pale, Flat Chest
- **Clothes:** School Uniform, Miniskirt, Thigh-high Stockings, Ribbon Hair Tie
- **Engages in:** Fighting, Teasing
- **Eyes:** Amber, Tareme
- **Items:** Dagger
- **Personality:** Lazy, Carefree
- **Role:** Classmate, High School Student, Gamer
- **Voiced by:** Yukito Saori

### Fujimori Kasumi (藤森 香澄)
- **Gender:** Female
- **Measurements:** Height: 160cm, Weight: 47kg, Bust-Waist-Hips: 86-54-88cm
- **Hair:** Violet, Spiky Bangs, Parted to Side, Sidehair, Spiky Bun
- **Body:** Teen, Slim, Pale
- **Clothes:** School Uniform, Knee-high Socks, Bolo Tie
- **Items:** Sword
- **Engages in:** Cooking, Fighting, Not Sexually Involved, Sewing
- **Eyes:** Violet, Tsurime
- **Personality:** Arrogant, Short-tempered, Atashi
- **Role:** High School Student, Superhuman, Bad Student
- **Voiced by:** Hiragi Yuki

### Fujishima Nao (藤島 直)
- **Gender:** Female
- **Measurements:** Height: 179cm, Weight: 57kg, Bust-Waist-Hips: 89-62-88cm
- **Birthday:** 4 December
- **Hair:** Brown, Ponytail, Waist Length+, Spiky Bangs
- **Body:** Slim, Pale, Big Breast Sizes
- **Eyes:** Amber, Tsurime
- **Role:** Teacher
- **Personality:** Strict, Tomboy, Watashi, Loud
- **Engages in:** Unarmed Fighting, Not Sexually Involved
- **Clothes:** Sports Uniform, Tracksuit
- **Voiced by:** Naoshima Fuji

### Fushimi Tsubasa (伏見 つばさ)
- **Gender:** Female
- **Measurements:** Height: 145cm, Weight: 37kg, Bust-Waist-Hips: 72-51-71cm
- **Hair:** Brown, Red, Twin Tails, Long, Curtained, Parted in Middle, Sidehair
- **Body:** Teen, Slim, Pale, Small Breast Sizes, Fang
- **Clothes:** School Uniform
- **Engages in:** Fighting, Not Sexually Involved
- **Items:** Spear
- **Personality:** Arrogant, Short-tempered, Rude, Atashi
- **Role:** Schoolmate, High School Student, Superhuman
- **Eyes:** Garnet, Tsurime
- **Voiced by:** Fujimori Yukina

### Ichikura Chiharu (市倉 千春)
One of the Protagonist's Classmates and a rather Perverted one at that.
She Always looks for New Storys, that she can spread around the School.
Anything gossip related will never escape her Ears.
The Twin Sister of  Jin Ichikura which one she loves to tease.

- **Gender:** Female
- **Measurements:** Height: 152cm, Weight: 39kg, Bust-Waist-Hips: 83-56-81cm
- **Hair:** Blond, Twin Tails, Short, Sidehair
- **Body:** Teen, Slim, Pale, Fang
- **Clothes:** School Uniform, Thigh-high Stockings, Beret, Hairpin, Clothing with Ribbons, Hair Tie, Ribbon Hair Accessory
- **Eyes:** Violet, Tareme
- **Personality:** Boku, Lazy, Carefree, Friendly, Kind, Energetic, Mischievous, Puffy
- **Role:** Twin Sister, Classmate, High School Student, Younger Sister, Healer
- **Engages in:** Teasing
- **Voiced by:** Haruka Sora

### Ichikura Jin (市倉 仁)
- **Gender:** Male
- **Measurements:** Height: 173cm, Weight: 62kg
- **Hair:** Blond, Short, Spiky, Spiky Bangs
- **Body:** Teen, Slim, Pale
- **Clothes:** School Uniform, Coat, Cross Necklace, Shirt, Jeans, Belt, Cravat
- **Personality:** Hotblooded, Ore, Funny
- **Eyes:** Violet, Tareme
- **Items:** Spear
- **Role:** Twin Brother, Friend, Schoolmate, Classmate, High School Student, Older Brother, Butt Monkey
- **Engages in:** Teasing
- **Subject of:** Headache, Illness, Anemia, Teasing, Weakness
- **Voiced by:** One More Chance

### Ishibashi Misa (石橋 美佐)
- **Gender:** Female
- **Measurements:** Height: 145cm, Weight: 36kg, Bust-Waist-Hips: 71-51-72cm
- **Hair:** Blond, Waist Length+, Curtained, Braid, Spiky Bangs, Parted in Middle, Sidehair
- **Body:** Teen, Slim, Pale, Small Breast Sizes, Younger Appearance
- **Eyes:** Amber, Tareme
- **Clothes:** Glasses, Lab Coat, Hair Tie, Skirt Suit
- **Role:** Teacher, Scientist
- **Personality:** Relaxed, Energetic, Watashi
- **Engages in:** Not Sexually Involved
- **Voiced by:** Miru

### Kobayashi Rei (小林 麗)
- **Gender:** Female
- **Measurements:** Height: 157cm, Weight: 42kg, Bust-Waist-Hips: 80-54-79cm
- **Hair:** Pink, Odango, Twin Tails, Waist Length+, Straight, Parted to Side, Sidehair
- **Body:** Teen, Slim, Pale
- **Clothes:** School Uniform, Thigh-high Stockings, Ribbon Hair Tie, Bun Covers
- **Engages in:** Fighting, Not Sexually Involved
- **Eyes:** Blue, Tareme
- **Items:** Dagger
- **Personality:** Airhead
- **Role:** High School Student
- **Voiced by:** Aoba Ringo

### Minato Shiho (湊 志保)
- **Gender:** Female
- **Measurements:** Height: 152cm, Weight: 38kg, Bust-Waist-Hips: 78-55-78cm
- **Hair:** Black, Hime Cut, Ankle Length, Sidehair
- **Body:** Teen, Slim, Pale
- **Clothes:** School Uniform, Hair Flower
- **Items:** Sword
- **Engages in:** Fighting, Sarcasm
- **Eyes:** Violet, Tsurime
- **Personality:** Kuudere, Classic Tsundere
- **Role:** Childhood Friend, Rival, Classmate, High School Student, Superhuman, Yamato Nadeshiko
- **Voiced by:** Nonami Hinaki

### Oota Hiroo (太田 寛雄)
- **Gender:** Male
- **Measurements:** Height: 175cm, Weight: 60kg
- **Hair:** Blue, Short
- **Body:** Teen, Slim, Pale
- **Clothes:** School Uniform, Cravat
- **Eyes:** Blue, Hosome
- **Role:** Classmate, High School Student
- **Voiced by:** Hirono Daichi

### Sada Akira (佐田 明)
One of Yves Servants, and also her Punching Bag.

- **Gender:** Male
- **Measurements:** Height: 170cm, Weight: 70kg
- **Hair:** Short, Grey
- **Body:** Teen, Slim, Pale
- **Engages in:** Fighting, Bullying
- **Eyes:** Red, Hosome
- **Personality:** Arrogant
- **Items:** Whip
- **Role:** High School Student
- **Voiced by:** Seji Haruyuki

### Shibazaki Kaoru (柴崎 薫)
- **Gender:** Male
- **Measurements:** Height: 155cm, Weight: 42kg
- **Hair:** Brown, Shoulder-length, Straight, Spiky Bangs, Sidehair
- **Body:** Teen, Slim, Pale, Androgynous
- **Clothes:** School Uniform, Shirt, Jeans, Cravat, Clothing with Ribbons
- **Eyes:** Green, Tareme
- **Personality:** Boku, Timid, Kind, Honest, Effeminate, Opposite Gender Voiced
- **Role:** Roommate, Classmate, High School Student
- **Subject of:** Teasing
- **Engages in:** Not Sexually Involved
- **Voiced by:** Marui Kotono

### Shijou Rikiya (四条 力也)
- **Gender:** Male
- **Measurements:** Height: 181cm, Weight: 75kg
- **Hair:** Short, Spiky, No Bangs, Orange, Slicked Back
- **Body:** Teen, Slim, Pale
- **Engages in:** Fighting
- **Eyes:** Amber, Hosome, Jitome
- **Items:** Dagger
- **Role:** High School Student, Bad Student
- **Clothes:** Cravat
- **Voiced by:** Kajikawa Shouhei

## Shops
- [Official Website](http://www.eufonie.jp/product/koiken/index.html)
- [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ013652.html)

## Releases
### Japanese
- **2012-11-22**: Koiken Otome - Trial Edition - [Official website](http://www.eufonie.jp/product/koiken/index.html#download3)
- **2012-12-21**: Koiken Otome - First Press Limited Edition - [Official website](http://www.eufonie.jp/product/koiken/index.html#top), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=17254)
- **2013-05-10**: Koiken Otome - Download Edition - [Official website](http://www.eufonie.jp/product/koiken/index.html), [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ013654.html), [DMM](https://dlsoft.dmm.co.jp/detail/qual_0002/)
- **2014-04-25**: Koiken Otome ~Revive~ Duology First Press Limited Edition - [Official website](http://www.eufonie.jp/product/koiken_revive/), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=19411)
- **2015-01-09**: Koiken Otome & Koiken Otome ~Revive~ W Pack - [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ013652.html), [DMM](https://dlsoft.dmm.co.jp/detail/qual_0019/)

### English
- **2016-07-13**: Koiken Otome - [Official website](http://flyingpantsu.net/koiken-otome/koiken-otome-full-patch/)

### Chinese (simplified)
- **2016-08-13**: Lian Jian Yinu - [Official website](https://tieba.baidu.com/p/4425504271?red_tag=1668371119)

## Tags
Magic, Superpowers, Sexual Content, ADV, Fighting Heroine, Sword Combat, Magic/ESP Combat, Romance, Comedy, Kuudere Heroine, Genius Heroine, Male Protagonist, Fighting Protagonist, Multiple Endings, Ojousama Heroine, Deredere Heroine, Protagonist's Childhood Friend as a Heroine, Shy Heroine, Protagonist's Rival as a Heroine, Student Heroine, School Dormitory, Twins as Support Characters, Tournament, Cafe, Student Protagonist, Slow-burn Romance, Sword Wielding Heroine, Duel, Consensual Sex Involving Tentacles, Tsundere Heroine, Branching Plot, Hotblooded Heroine, Other Perspectives, Ponytail Heroine, Energy Transfer via Sex, Proactive Protagonist, Emotionless Heroine, Clumsy Heroine, Protagonist with a Face, Defloration, Sex in Public Places, Side Portraits, Boobjob, Only Virgin Heroines, Orphan Heroine, Tactician Heroine, Group of Friends, Scientist Heroine, Spontaneous Power-ups, Foreigner Heroine, Wedding, No Common Sense Heroine, Twin Tail Heroine, Missionary Position, Sixty-nine, Blowjob, Popular Protagonist, Heroine with Intake Hairstyle, Sacred Treasure, Doggy Style, Ejaculation Choice, Reunion, Few Choices, Inventor Heroine, Fingering, Cowgirl, Charming Protagonist, Psionic School, Naizuri, Music Recollection, Chosen Choices Marking, Sexual Cosplay, Single Boobjob, Single Handjob, Single Blowjob, Vaginal Fingering, High School Student Heroine, Sex with Protagonist Only, Heroine with Big Breasts, Heroine with Small Breasts (Non-Loli), Training Camp, ESP, Combat Capable Friends, Arrogant Heroine, Kidnapping

## More Games from Eufonie
- [Colorful Aquarium](https://pinovel.net/v513)
- [Hidamari Basket](https://pinovel.net/v1277)
- [Koiken Otome](https://pinovel.net/v10608)
- [Koiken Otome ~Revive~](https://pinovel.net/v13074)
- [Hanidebi! Honey & Devil](https://pinovel.net/v20470)

---
*View the full details at [pinovel.net/v10608](https://pinovel.net/v10608).*

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```