Happosai separates Ranma into his girl and boy halves with a magical incense. The girl-type ends up with all of Ranma's negative traits, causing it to become a vicious being that wants to enslave the boy-type.

Ryoga, the eternally lost boy, gets soap that can cure his Jusenkyo curse, and plans to ask Akane to go out with him.  However, the soap belongs to Shampoo, who wants it back, along with Ranma.