When Ranma opens a package from Shampoo, his major weakness is revealed - he's terrified of cats, something Sasuke, Kuno's loyal ninja servant, intends to exploit to the fullest.

Having been made hyper-sensitive to heat by Cologne, Ranma is trapped in his girl form until he promisees to marry Shampoo. Refusing to give up, Ranma takes a job at her diner, hoping for a chance to grab the 'Phoenix Pill' that's supposed to cure him.