Hanazawa Rui

Rui is Tsukasa's best friend and Tsukushi's first romantic interest. He is generally quiet, distant, uninterested in people and is said to be autistic, but has a soft spot for his close friends and the model Shizuka Todou, for whom he has harbored feelings for since childhood. His character is a bit complex, and his feelings for Tsukushi are in a nearly constant state of flux varying from annoyance to love. Above all, he cares about her deeply.