Haruyuki Inumaru

Haruyuki is a generally friendly and cheerful boy who is in love with with his childhood friend, Sayaka Ooue, and always attempts to get her attention. She harshly rejects him, however, and generally sees him as a nuisance. Despite that, Haruyuki is willing to get hurt to protect her and values her above his own safety. He even claims that he doesn't care if he has any friends as long as Sayaka is in his life.

(Source: Corpse Party Wikia)