Yugi's close friend. Jonouchi is loyal, heroic, good-natured, brave, funny, friendly, kind-hearted, and loving. When Ushio beats up Jonouchi and Honda, Yugi stands up for them, and it's then that Jonouchi realizes that he was jealous of Yugi's "treasure" all along. Later on that night, he retrieves the last Millennium Puzzle piece and brings it back to Yugi's house, where Yugi completes it and challenges Ushio to the first Shadow Game of the series. Jonouchi is touched by Yugi's behavior towards him and they become loyal friends, forming his own "treasure."