Season 4 : Episode 20 - "Mousse Goes Home to the Country!"
Mousse reads the letter from his mother indicating that she wants to know his future with Shampoo is set. Mousse makes a deal that if he defeats Ranma, Shampoo will marry him, but loses and leaves.
Part 01
Part 02
Next Episode : 21 - "The Dumbest Bet In History"
Technorati: Ranma and Akane, Ranma 1/2, Ranma Anime