Ranma Saotome prepares to conquer the Ogre Festival of the Dark, a tournament resembling that of kick the can, in which Happosai personally trains him for this special event. The anything-goes martial arts career is on the line as Ranma does his best not to forfeit. However, he is unaware what will be revealed if he were to succeed.

When Happosai accidentally gets split into six versions of himself, it brings chaos to the city.