The Ultimate Technique

 is the 106th chapter of the manga and the first chapter of the Happosai's Ultimate Technique Arc.

Soun and Ranma lose their patience with Happosai after he burns their clothes and dojo sign so he can cook sweet potatoes. After Ranma tricks him by dressing up as a girl, Happosai decides to unleash his ultimate technique, the Happo-Fire Burst!

Cast in Order of Appearance

 * Soun Tendo
 * Happosai
 * Ranma Saotome (male)
 * Kasumi Tendo
 * Nabiki Tendo
 * Genma Saotome (panda)
 * Ranma Saotome (female)
 * Genma Saotome (human)

Trivia

 * This is the first chapter in which Akane doesn't appear at all.