Katsuya Jonouchi

Once a bully of Yugi Muto, this brave fighter transformed into his most loyal companion after Yugi rescued him from a violent thug. Although he often struggles with self-doubt during intense matches, he possesses an indomitable spirit and never gives up. Driven by a deep love for his sister, Shizuka, he competes in the Duelist Kingdom Tournament to fund the essential surgery needed to save her failing eyesight.