Akane twists her ankle during practice, forcing Ranma to take her place in the match with Kodachi.

Tired of the constant outbursts whenever she gets near Ranma, Shampoo decides to get Akane out of the way.

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?