Goshujinsama to wa Iwasemasen!

Matsuoka is a transfer student whose wish is to make 100 friends. He gets along with his classmates almost at once, and it all looks to be smooth sailing, until he crosses paths with the school's most feared delinquent, Sogou! One thing leads to another and... Sogou ends up becoming Matsuoka's slave?!

(Source: Tokuma Shoten, translated)