Shinichi Hoshii

Hoshii is a first year high school student. He comes across Kokoro one night when she'd been locked in a cabinet, seemingly from playing hide-and-seek. However, Hoshii soon realizes that Kokoro is being bullied by her classmates, and encourages her to speak up for herself. Despite being warned to stay away from her for his own good, Hoshii and Kokoro begin eating lunch together, and he realizes his feelings towards her are changing.