Kobayashi, Kotarou

小林虎太郎

Kotaro is a 12-year-old middle school classmate of Misaki, whom he has a crush on, and he is also Hatoko's brother. He is constantly subjected to assaults by Tamayo and her various martial arts techniques, having been a victim of them since he was four years old. He becomes jealous of Ohjiro's advances toward Misaki, going so far as to attempt a quasi-match of Angelic Layer against Ohjiro, despite never having played it before. His family owns a karate dojo, and Kotaro has practiced karate himself, showing Misaki some of his knowledge in hopes that she can use it to help Hikaru win. (from Wikipedia)