Imori is a character in the Yu-Gi-Oh! manga. He is a student at Domino High School. Withdrawn and somewhat shy, Imori is then revealed to be anti-social and selfishly vindicated.
Imori uncovered the secrets of Yugi's Millennium Puzzle, and decided to usurp Yugi Mutou from his position of the guardian of darkness by challenging Yugi to a game of Dragon Cards, a forbidden game which his grandfather found while in Manchuria in World War II. Imori won the first game against Yugi, causing his soul to go into the soul-eating jar. Before collapsing, Yugi grabbed the puzzle, causing Dark Yugi to come out. The second Dragon Cards game ended with Imori losing. Imori's soul was then sucked into the soul-eating jar, to be eaten by twenty-five dragons, while Yugi's soul came out and was re-absorbed into his body unharmed.