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.

A strange old woman seeks out Ranma, testing his skills while calling him 'future son-in-law'.

Akane is shocked when she witnesses Genma getting attacked by a stranger referring to him as father, wanting revenge for being abandoned. Who is this Ukyo?

Furious at being prevented from accompanying Akane to the hot-springs, Happosai decides to recover the scroll containing his most deadly attack - The Happofire Burst - to teach them all a lesson. Ranma is however determined to find it first, and it's a battle of wits as they both try to infiltrate the scroll's resting place - an all girls hot-spring...

After getting beaten by Shampoo, Akane is thrilled to find that Happosai's magic noodles she accidently ate has given her super strength. But can she live with the side-effects?