Also known as: 牛尾哲
The bully from the original Yu-Gi-Oh! manga's first chapter who abused his power at school. He was the first victim of Yami Yugi. He lost to Yugi's dark personality in a Shadow Game, forcing him into a penalty. Somehow, he recovered from that and became a member of Sector Security in Yu-Gi-Oh! 5D'S.