Shigeru "Viper" Mamiya

This defense player is notorious for his skill at marking and restricting the movement of players. They often call him 'viper' because once he makes his mark, or his 'bite', he won't ever leave that player's side, sometimes even resorting to illegal moves to take the player down. Once, in Josui's game with Mushashinomori, he kicked Tatsuya purposefully when the latter was about to score a goal. He becomes a regular on the Junior Senbatsu Team.