Isokawa, Niina

磯川ニーナ

Niina is a blonde girl who shares a class with Marie. She has an American mother and a Japanese father, and possesses a great deal of energy. For her young age, she is very busty, physically very active, and extremely friendly, quickly attaching herself to Marie to the latter's initial displeasure. In the manga, she has a crush on Yuji (who is torn between her being underage and her ample bust) and often refers to him as onii-chan.