---
title: "12-sai. ~Koi Suru Diary~"
description: "☆This is the story of Hanabi and Yui's seven special days☆  Your feelings push the story forward. What will tomorrow look like...?  Hanabi's side ~Sparkling Day"
image: "https://t.vndb.org/cv/41/100241.jpg"
---

# 12-sai. ~Koi Suru Diary~

![12-sai. ~Koi Suru Diary~](https://t.vndb.org/cv/41/100241.jpg)

**Alternative Title:** １２歳。～恋するDiary～

**Developer:** Happinet Games

**Release date:** Aug 4, 2016

**Platform:** N3D

**Language:** Japanese

**Rating:** 8.7/10 (avg, 3 votes)

## Description
☆This is the story of Hanabi and Yui's seven special days☆

Your feelings push the story forward. What will tomorrow look like...?

Hanabi's side ~Sparkling Days~

Seven days for feelings to bloom on a stage!

Hanabi and the others were chosen to put on a school play.
There's a lot going on, as Yuzuki, Inaba and everyone else from Aoba Elementary
is practicing for the play.
This is the story of these seven days, with many bonds yet to be established!

Yui's side ~Heart-throbbing Days~

First visits, first meetings.
Love and friendship will thrive during these seven days!

Yui and her friends go to a kids' camp.
There, she meets Takechi and Kokona, who looks exactly like Kokoa.
This is the story of these emotionally-charged seven days!

[translated from [the official website](http://age12diary.happinet-games.com)]

## Characters
### Aoi Yui (蒼井 結衣)
6th year, class 2.
[url=/c58422]Hanabi's[/url] friend.
A beautiful and mature girl.

[url=/c58426]Kazuma's[/url] girlfriend.

- **Gender:** Female
- **Hair:** Brown, Bob Cut, Shoulder-length
- **Eyes:** Brown
- **Role:** Middle School Student
- **Voiced by:** Kimura Juri

### Ayase Hanabi (綾瀬 花日)
6th year, class 2.
A bright girl with a strong sense of justice.
She's self-conscious about her childishness.
She is a big fan of the "Rabbit Panda", a toy and accessory franchise.
Hanabi does not know how to swim.

[url=/c58425]Yuuto's[/url] girlfriend.

- **Gender:** Female
- **Hair:** Brown, Twin Tails, Long
- **Eyes:** Brown
- **Role:** Middle School Student
- **Voiced by:** Kakuma Ai

### Hiyama Kazuma (桧山 一翔)
6th year, class 2.
The most popular boy in class.
He has a bit of a rough personality.

[url=/c58423]Yui's[/url] boyfriend.

- **Gender:** Male
- **Hair:** Short, Orange
- **Eyes:** Brown
- **Role:** Middle School Student
- **Voiced by:** Horie Shun

### Takao Yuuto (高尾 優斗)
6th year, class 2.
A kind and cool boy who's good at looking after people.
He's very popular with girls because of his good looks.

[url=/c58422]Hanabi's[/url] boyfriend.

- **Gender:** Male
- **Hair:** Brown, Short
- **Eyes:** Blue
- **Role:** Middle School Student
- **Voiced by:** Saitou Souma

### Class President (委員長)
The 6th year, class 2 president.
He's friendly with Eiko.

- **Gender:** Male
- **Alias:** Iinchou
- **Hair:** Black, Short, Bowl Cut
- **Role:** Class President, Middle School Student
- **Clothes:** Coke-bottle Glasses

### Eiko (エイコー)
6th year, class 2.
The class clown.

- **Gender:** Male
- **Hair:** Black, Short
- **Eyes:** Black
- **Role:** Middle School Student
- **Voiced by:** Watanabe Takumi

### Hamana Kokoa (浜名 心愛)
6th year, class 2.
A pretty girl that is popular with all the boys.
She also has a crush on Yuuto and is aiming for him.

- **Gender:** Female
- **Hair:** Pink, Bob Cut, Shoulder-length
- **Eyes:** Violet
- **Role:** Rival, Middle School Student, Ojousama
- **Voiced by:** Hara Sayuri

### Mikami Inaba (三上 稲葉)
A boy who goes to the same cram school as [url=/c58423]Yui[/url].
He likes her and is often making passes at her.

- **Gender:** Male
- **Hair:** Pink, Short
- **Eyes:** Pink
- **Role:** Middle School Student
- **Voiced by:** Tachibana Shinnosuke

### Ogura Marin (小倉 まりん)
6th year, class 2.
A precocious and older sister type girl.
She is friendly with both Hanabi and Yui.

- **Gender:** Female
- **Hair:** Bun, Orange
- **Eyes:** Brown
- **Role:** Friend, Middle School Student
- **Voiced by:** Makiguchi Mayuki

### Tsutsumi Ayumu (堤 歩)
6th year, class 2.
A transfer student from Tokyo.
He went to the same kindergarten as [url=/c58422]Hanabi[/url].

- **Gender:** Male
- **Hair:** Blond, Short
- **Eyes:** Brown
- **Role:** Childhood Friend, Transfer Student, Middle School Student
- **Voiced by:** Kakihara Tetsuya

## Shops
- [Official Website](http://age12diary.happinet-games.com/)

## Releases
### Japanese
- **2016-08-04**: 12-sai. ~Koi Suru Diary~ Package Edition - [Official website](http://age12diary.happinet-games.com/), [PlayAsia](https://www.play-asia.com/13/70a3ld)
- **2016-08-04**: 12-sai. ~Koi Suru Diary~ Download Edition - [Official website](http://age12diary.happinet-games.com/)

## Tags
ADV, Romance, Female Protagonist, Multiple Protagonists, No Sexual Content, Otome Game, Child Protagonist, Loli Protagonist, Protagonist with a Face, Middle School, Middle School Student Protagonist, Middle School Student Hero, School Play, Different Love Interest(s) Per Protagonist, Protagonist with Voice Acting

## More Games from Happinet Games
- [12-sai. ~Honto no Kimochi~](https://pinovel.net/v16473)
- [Kobayashi ga Kawai sugite Tsurai!! Game demo Kyun Moe MAX ga Tomaranai~](https://pinovel.net/v17637)
- [Sousaku Alice to Ouji-sama!](https://pinovel.net/v18082)
- [12-sai. ~Koi Suru Diary~](https://pinovel.net/v21712)
- [Lost Museum -Kaigami Tsuisoutan-](https://pinovel.net/v68636)

---
*View the full details at [pinovel.net/v21712](https://pinovel.net/v21712).*

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