Yugi befriends a bullied boy named Imori, and the two discover the forbidden game Dragon Block. The evil game takes control of Imori and he challenges a clueless Yugi to play the game. The evil Imori overcomes Yugi, causing him to lose his soul. However, it turns out that Yami Yugi is still there, and he challenges Imori to a Shadow Game where the loser's soul will be devoured by the Dragon Block.