Ranma 1/2

A strange man appears before Akane and steals her stuffed pig right out of her hand! Mistaking the pig for Akane, the man challenges Ranma: "If you want Akane back, come to the China Festival!"

Mousse calls out Ranma to battle. During training at Jusenkyo, he fell into the Yahzu-Nii-Chuan, or "Spring of Drowned Duck," and blames Ranma for his new transformation. Incidentally, Mousse intends to splash Akane with water from the Yahzu-Nii-Chuan!

A perverted old man named Happosai appears before Akane. He turns out to be the master of both Genma and Soun. While the two old pupils panic, Happosai appoints Ranma as his heir and decides to stay at the dojo indefinitely.

Ryoga acquires a map to the Japanese Nan'niichuan, which can help him permanently turn back into a man. Ranma helps Ryoga with the search, and somehow they end up at the girls' locker room at Furinkan High School.

The Aqua-Moss Urn is the key to deciphering the mystery of the Japanese Nan'niichuan. Following the code written on the urn, Ranma finds himself at Kuno's mansion. Shampoo and Akane also get mixed up in the chaos at the Kuno Estate!