Kojima

Kojima (小島) is a student at Sakura Middle School.

Appearance
Kojima is a confident looking boy with short blonde hair. He is seen wearing the standard school uniform, consisting of a white dress shirt, black baggy pants, and black shoes.

Personality
Kojima seems more of the show-off type, even in a situation that could end badly for him.

Fighting Prowess
Kojima's fighting skills have never been shown, but given his confidence, he has likely fought many times before. The odds of his fight against Takuya Yamamoto are 4-6 in his favour, which might suggest that he has already proven himself enough for punters to trust him.

Toman Arc
Kiyomasa's gang organized fights between different middle school students and placed bets. That day, it was Kojima and Takuya who were supposed to face each other. But as Kiyomasa was about to start the fight, Takemichi intervened to fight Kiyomasa. It is unknown what happened to him after Manjiro Sano and Ken Ryuguji entered the scene, but presumably he ran away with the other students.

Etymology

 * The name Kojima means "small, less in size" (小) (ko) and "island, domain, territory" (島) (shima/jima).