Yoshio Tamaru (田丸善男 Tamaru Yoshio)
GTO: The Early Years (Shonan Junai Gumi)[]
Inspired by his grandfather's dying words to become a 'strong man', the small and bullied Yoshio decides to change his life by joining the Oni-Baku-gumi. However, his overzealous approach to fighting gets him in trouble with Eikichi and Ryuji. He then takes control of the Atsuki Yagyou gang, who have been ruining the Oni-Baku's reputation, leading to a confrontation. He pulls a gun on Eikichi, but because it is old it misfires, injuring his hands. He never appears again after this.