Ranma ½, Part 5 number 12

This one has a really nice drawing of Akane on the front. Ranma, Soun and Genma are in search of the 'secret scroll' which just happens to be in the middle of a hot springs for women. Happosai shows up. Ranma changes to Ranma-chan and heads towards the springs but the women get out, all nude, and Ranma/Ranma-chan is flustered. Happosai ends up with the scroll, but no one can read it due to Happosai's bad handwriting.

Later Ranma-chan and Akane play tennis, and Happosai can't get enough.

They catch him and try to get him to tell them the secret of the Happo fire-burst. Happosai finally figures it out, but what it turns out to be is a giant fireworks. The tables get turned on Happosai, but her survives to continue stealing women's underwear.