Yukimura Yukinojou

Protagonist and the title giver of Ashita no Yukinojou (the other half, "Ashita no", is a reference to the boxing manga Ashita no Joe). A genius boxer who after a certain incident completely abandoned boxing.

Spoiler

The aforementioned event shocked him so much that he is completely unable to hit anyone.

He transferred to the second year of Kashima school, into Serina's class. He's exceedingly fit, but at the same time taciturn and unsociable toward everyone.