---
title: "Ie no Kagi"
description: "Hiroshi Kuroyanagi, a boorish failure of an elementary school teacher, is blackmailed by his student Rika Sakuma, a girl with demonic intelligence, into a wild "
image: "https://t.vndb.org/cv/03/121303.jpg"
---

# Ie no Kagi

![Ie no Kagi](https://t.vndb.org/cv/03/121303.jpg)

**Alternative Title:** いえのかぎ

**Aliases:** La llave a casa, 家的鑰匙

**Developer:** Katsudou Mangaya

**Release date:** Aug 11, 2017

**Platform:** Windows, macOS

**Language:** English, Spanish, Japanese, Chinese (simplified), Chinese (traditional), Russian

**Rating:** 6.6/10 (95 votes)

## Description
Hiroshi Kuroyanagi, a boorish failure of an elementary school teacher, is blackmailed by his student Rika Sakuma, a girl with demonic intelligence, into a wild scheme to rob the school of a hidden fortune worth tens of millions of yen.

Lies, cheating, and betrayal...students and teachers struggle against one another for dominance in this suspenseful thriller.

Who will come out on top and claim the schools hidden fortune?

[From Steam]

## Characters
### Kuroyanagi Hiroshi (黒柳 博士)
An incompetent school teacher who is looked down on by both colleagues and students alike. He has a severe case of Lolita complex and has even gone as far as to set up hidden cameras in the school bathrooms. He has fallen straight into the main heroines trap, but is such a sick weirdo that he’s actually enjoying it.

Job: 4th Grade Teacher
Symbol: Joker

[From Steam]

- **Gender:** Male
- **Hair:** Black, Short
- **Body:** Slim, Pale, Young-adult
- **Clothes:** Trousers, Glasses, Necktie, Shirt, Belt, Sandals
- **Eyes:** Black, Sanpaku Eyes
- **Personality:** Boku, Closet Pervert
- **Subject of:** Blackmail
- **Role:** Teacher
- **Engages in:** Blackmail

### Jinguuji (神宮寺)
A young elementary school principal who is popular among parents for his squeaky clean image. The truth however is that he is a greedy, power hungry cheat who is preparing to announce a candidacy for town mayor.

Job: Elementary School Principal
Symbol: King

[From Steam]

- **Gender:** Male
- **Hair:** Brown, Short, Parted to Side
- **Eyes:** Brown
- **Body:** Slim, Pale, Young-adult
- **Clothes:** Suit, Necktie, Watch
- **Items:** Knife
- **Personality:** Ore, Narcissist, Confident, Watashi, Manipulative, Charismatic
- **Role:** Husband, Criminal, Principal
- **Engages in:** Child Abuse, Smuggling, Bribery
- **Subject of:** Confinement

### Kazami Noriko (風見 紀子)
An honor student who is obsessed with upholding justice and order within the school. She enjoys taking notes about problem children (mainly Akira) in her own notebook.

Job: 4th grader, Hall Monitor, and Class Rep.
Symbol: Spade

[From Steam]

- **Gender:** Female
- **Hair:** Brown, Waist Length+, Blunt Bangs
- **Eyes:** Brown
- **Body:** Slim, Pale, Kid
- **Clothes:** T-shirt, Shorts, Sports Shoes, Hairpin, Name Tag
- **Personality:** Serious, Watakushi
- **Role:** Discipline Committee Leader, Fourth Grader
- **Voiced by:** Endou Mame

### Sakuma Rika (佐久間 梨香)
A fourth grade girl who, despite her antisocial tendencies, is very intelligent. She uses her impish cunning to bend adults to her whim. After discovering Hiroshi’s dark secret, she uses it against him to recruits him into a heist scheme.

Job: 4th grade elementary school student
Symbol: Heart

[From Steam]

- **Gender:** Female
- **Hair:** Brown, Tiny Braid
- **Eyes:** Brown
- **Body:** Slim, Pale, Kid
- **Role:** Student, Thief, Younger Sister, Fourth Grader
- **Engages in:** Blackmail, Smuggling
- **Clothes:** Hoodie, Ribbon Hair Tie, Pleated Skirt
- **Personality:** Smart, Sly, Atashi
- **Voiced by:** Sayu

### Shidou Akira (獅童 晶)
A wild and energetic girl with a blatant disdain for the school dress code. A trouble maker to the core, she is always looking for a quick buck and is apt to skip class and play cards.

Job: 4th grader
Symbol: Diamond

[From Steam]

- **Gender:** Female
- **Hair:** Blond, Side Tail, Spiky Bangs
- **Body:** Slim, Kid, Tanned
- **Eyes:** Violet
- **Clothes:** Wristband, Shorts, Transparent, Ankle Boots, Kuro-Gyaru, Ribbon Headband
- **Personality:** Carefree, Atai
- **Subject of:** Blackmail
- **Role:** Thief, Fourth Grader
- **Engages in:** Blackmail, Smuggling
- **Voiced by:** Inukai Ao

### Tachibana Misa (橘 美沙)
An absent-minded girl who always has a big smile on her face even when she doesn’t understand what’s going on around her.
She loves wearing her cute and stylish school uniform.

Job: 1st year junior high school student
Symbol: Clover

[From Steam]

- **Gender:** Female
- **Hair:** Brown, Shoulder-length, Parted in Middle
- **Eyes:** Brown
- **Body:** Teen, Slim, Pale
- **Clothes:** School Uniform, Hair Ribbon, T-shirt, Vest, Wristband, Hairpin, Pleated Skirt, String Ribbon Tie, Loafers, Loose Socks
- **Subject of:** Child Abuse, Mental Affliction
- **Role:** Prostitute, Older Sister, Seventh Grader
- **Items:** Bag
- **Personality:** Energetic
- **Engages in:** Not Sexually Involved
- **Voiced by:** Koyama Haru

## Shops
- [Official Website](http://ugainovel.web.fc2.com/ienoKagi/)

## Releases
### Japanese
- **2017-08-11**: Ie no Kagi - Package Edition - [Official website](http://ugainovel.web.fc2.com/ienoKagi/), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=25742), [Melonbooks.co.jp](https://www.melonbooks.co.jp/detail/detail.php?product_id=270255)
- **2017-09-06**: Ie no Kagi - Trial Edition - [Official website](http://ugainovel.hiho.jp/patch/IenoKagi/index.html), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0256291/)
- **2019-05-18**: The Key to Home - [Fakku](https://www.fakku.net/games/the-key-to-home-english)
- **2023-06-28**: Ie no Kagi - Download Edition - [Official website](http://ugainovel.web.fc2.com/ienoKagi/), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=25742), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0256291/), [Melonbooks.co.jp](https://www.melonbooks.co.jp/detail/detail.php?product_id=3200988)

### English
- **2019-05-18**: The Key to Home - [Fakku](https://www.fakku.net/games/the-key-to-home-english)

### Spanish
- **2019-05-18**: The Key to Home - [Fakku](https://www.fakku.net/games/the-key-to-home-english)

### Chinese (simplified)
- **2019-05-18**: The Key to Home - [Fakku](https://www.fakku.net/games/the-key-to-home-english)

### Chinese (traditional)
- **2019-05-18**: The Key to Home - [Fakku](https://www.fakku.net/games/the-key-to-home-english)

### Russian
- **2020-05-20**: The Key To Home Chapter 1 - [Official website](https://anivisual.net/board/1-1-0-1451)

## Tags
Male Protagonist, Single Ending, Loli Heroine, Yakuza, No Sexual Content, Prostitution, Vertically Oriented Text, Protagonist with Glasses, Teacher Protagonist, Blackmail, Infodumping, Kinetic Novel, Protagonist with a Face, Elementary School, Only Loli Heroines, Varied Title Screens, Protagonist with a Sprite, Unoriginal Soundtrack, Political Corruption, Only Younger Heroines, Lolicon Protagonist, Elementary School Student Heroine, Perverted Protagonist, Gyaru Heroine, Adult Protagonist

## More Games from Katsudou Mangaya
- [Jigyaku no Uta Another Birthday](https://pinovel.net/v12730)
- [Toshokan Ressha](https://pinovel.net/v12731)
- [Ningyou-jou no Houkigami](https://pinovel.net/v37856)
- [Inugamizukai to Shounen](https://pinovel.net/v12732)
- [Katawaguruma to Yukionna](https://pinovel.net/v12733)
- [Hyakki Shachuu](https://pinovel.net/v12734)
- [Hiiragi Iwashi](https://pinovel.net/v12735)
- [Amai Shiru](https://pinovel.net/v22253)
- [Yotsudomoe](https://pinovel.net/v22254)
- [Sakura no Ki no Shita ni wa](https://pinovel.net/v20124)
- [Ie no Kagi](https://pinovel.net/v22252)
- [Inugami Etoki](https://pinovel.net/v34139)
- [Osaka Gitai Yu](https://pinovel.net/v60883)
- [Osaka Kowloonjo](https://pinovel.net/v60885)

---
*View the full details at [pinovel.net/v22252](https://pinovel.net/v22252).*

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