Because of a gambling debt Ranma made ten years ago in a game of Old Maid, the gambling king occupies the Tendo dojo. But Ranma, who, like the gambling king, is a bad gambler himself, manages to win back the dojo through the same game by the act of cheating. 

Akane Tendo cooks up a surprise meal for the Saotomes' anniversary at their household. However, Ranma wrecks the meal, and Akane was so mad, she began to call him a jerk, and run away. The rest of the gang (sans Kasumi) starts looking for her for the rest of the night. But when they found her, she was actually up on the roof.