The Matsuno brothers struggle to find employment. Later, Osomatsu tries to take an interest in his brothers' lives but winds up being a nuisance to them.

The Matsuno Brothers travel to the future and see they're going to get fat, greedy and finally beaten up by angry girls. They make an effort to change their ways, but they are destined to be beaten up.

Dayon uses Dekapan's latest invention to merge various people together into new beings, with a fiendish end goal in mind. Jyushimatsu becomes determined to get a job at a sea park as an actual dolphin, receiving strict training from a female trainer. Meanwhile, Totoko and Nyaa encounter each other at Chibita's oden stand.