Boku no Koto Karera no Koto

The moment Kuga Ryuuta enters high school, he's chased by resident delinquent, Yamaki Kyousuke, who doesn't even faze after he vehemently declines the confession. Appearing like saviours to drowning ukes are Mysterious Person Haruto and Weird Gaijin Axel Kings (no, really, that's his name) and long-suffering bearded teacher Nishio. A story full of laughter, punches in the faces, public baths and serious serious honestly serious drama!

[From Aarinfantasy Forums]