__Height:__ 139 cm

Kuro is one of Rin's friends, and is secretly in love with her, although the only one who appears to be aware of her unrequited love is Mimi. She therefore sees Aoki as her love rival. Kuro is notable for her foul mouthed behaviour as well as physical aggression towards others. It is also implied that her family is fairly affluent compared to other students. Possibly as a result of this, Kuro is obsessed with following the latest and expensive fashion trends and likes to show off her expensive clothing to others, which is usually in the Gothic Lolita style, sometimes combined with neko ears and tail. Many see her as a show off and a bad apple but she has managed to befriend both Rin and Mimi. 

3rd grade teacher Aoki Daisuke didn't expect the first class he ever taught to be one of the toughest obstacles of his life. After getting off on the wrong foot with the entire class, a moment of kind-heartedness instantly convinces one of his students, Rin Kokonoe, to make the ill-fated Aoki-sensei her lover. But what exactly are Rin's intentions for wanting to actively seduce Aoki-sensei, and will Aoki-sensei be able to help her to deal with them?

Released her first single "Jump up!" on August 24, 2005.

The story of Kodomo no Jikan is centered around 23-year-old Aoki Daisuke, who has just landed his first teaching job as a grade school teacher at Futatsubashi Elementary School. He is placed in charge of Class 3-1, where one of his students, a mischievously precocious Rin Kokonoe, develops a crush on him and goes so far as to proclaim herself Aoki's girlfriend. She aggressively pursues her efforts to be with her teacher despite the fact that he will lose his job if she gets too close, a situation further complicated by the often complex, intertwining relationships existing between them and their respective friends, families, and peers. 
(Source: Wikipedia)

A series of OVA episodes released with the limited edition manga volumes. Episode 01: What You Gave Me (Anata ga Watashi ni Kureta Mono) 
Kokonoe, Usa, and Kagami go shopping for a present for Sensei. Eventually Kokonoe decides to make one and they all end up spending the night at her house. Along the way we learn more about Usa's love for Reiji, Kagami's love for Kokonoe, and Kokonoe's love for Sensei. Episode 02: Kuro-chan, Shiro-chan (Kuro-chan to Shiro-chan) 
Kuro-chan tries to become friends with Shirai-sensei. Episode 03: A Child's Summer Time (Kodomo no Natsu Jikan) 
The girls, Aoki and Houin go into the country to visit Aoki's family.

Official parody of Kodomo no Jikan published in Winter 2012 magazine with the participation of numerous mangaka, who made a chapter each, as a tribute to the Watashiya Kaworu series, who also added one of its chapters. 
Includes: 
1. Hoken no Jikan (ほけんのじかん), Kouichi Kusano 
2. Kisu no Jikan (きすのじかん), Yoshikazu Hamada 
3. Okane no Jinkan (おかねのじかん), Mikabe Setsuna 
4. Rin-chan★Baka Kyoudai (りんちゃん★バカ兄妹), Yuna Kagesaki 
5. Untitled, Hidetaka Kakei 
6. Sensei no Hoshii Mono (せんせーのほしいもの), Cotoji 
7. Kodomo no Tessellation (こどものテッサレ―ション), Q-tarou Hanamizawa 
8. Untitled, Fumika Natsume 
9. Untitled, Satoru Matsubayashi 
10. Untitled, Utamaro 
11. Onetsu no Jikan (おねつのじかん), Tarou Shinonome 
12. Untitled, Sato Yoshimi 
13. Untitled, Asami Sekiya 
14. Untitled, Arima Honda 
15. Shiroi-sensei no Jikan♡ (白井せんせいのじかん♡), Mutsuki Tsutomu 
16. Untitled, Milk Morinaga 
17. Moshimo 3 Nin ga Sagume ni Nyuugaku shitara (もしも３人が咲女に入学したら。), Towa Ooshima 
18. “Nakamura.” (「中村。」), Takarada Gorgeous 
19. Real Kodomo no Jikan (リアルこどものじかん), Shuuzou Oshimi 
20. Abunai Mizugi no Jikan (アブない水着のじかん), Itokatsu 
21. Shiroi-sensei to Tsuki Aitai node Oyajima-sensei ni Naritai. (白井せんせいと付き合いたいので小失島せんせいになりたい。), Ayami Kazama 
22. Untitled, Ooi Masakazu 
23. Honobono Reiji-san (ほのぼのレイジさん), ÖYSTER 
24. Untitled, Touko Shiwasu 
25. Untitled, Kanko Nakamura 
26. Iidabashi no Futaba-chan: Kodomo no Jikan Tokubetsuhen (飯田橋のふたばちゃん　－こどものじかん特別編－), Story : Ryouichi Yokoyama, Art : Mayumi Katou 
27. Shugyou Sankan no Jikan (授業参観のじかん), Kaworu Watashiya

The story of Kodomo no Jikan is centered around 23-year-old Aoki Daisuke, who has just landed his first teaching job as a grade school teacher at Futatsubashi Elementary School. He is placed in charge of Class 3-1, where one of his students, a mischievously precocious Rin Kokonoe, develops a crush on him and goes so far as to proclaim herself Aoki's girlfriend. She aggressively pursues her efforts to be with her teacher despite the fact that he will lose his job if she gets too close, a situation further complicated by the often complex, intertwining relationships existing between them and their respective friends, families, and peers.

Kuro Kagami