Mousse is a long-time friend of Shampoo, although she may not see it that way. He has loved her for most of his life, but she finds him annoying at best. Without his glasses, he has poor vision and often mistakes one person for another. He arrives in Nerima looking for Shampoo's "new fiancé" and stays to try to win over his sweetheart. Shampoo rejected his advances when they were children, and this rejection still stands under Amazon law, even if he defeats Ranma in combat, yet he remains persistent. Now working as a waiter at the Cat Café, he transforms into a duck due to his own Jusenkyo curse. In human form, his clothing contains weapons of drastic proportions, including needles, chains, swords, bombs, household appliances, and virtually anything else imaginable. In duck form, Mousse can hide knives in his feathers.
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