Yancha ka!: Yankee, Wana ni Hamaru

The strong and smart Kudo decided to enroll in a "prep school for delinquents" just because it was close to home. On his first day, he was surrounded by a group of older students with bad attitudes, but he was saved by Daiga Kishimoto, who scared them off with a single head-butt. Daiga is rumored to be the best fighter in the school, with flamboyant blond hair and a lot of piercings, and Kudo is completely smitten by his cuteness and strength. (Source:Gush Comics, translated)