Mammon finds the "Forbidden Book of Body Switching" and plans to use it for some mischief, but when a dog interferes Mammon is certain everyone in the house will make fun of the results. However, the opposite happens?
The brothers are at the private beach of Lord Diavolo, the only son of the Demon King (Levi isn't much of an outdoor type so he is absent). The ever-so-poor Mammon secretly tries to carry out his plan, which is to take a shirtless photo of Lucifer and sell it to Lucifer's fans at RAD. However, his opponent is a tough one! With no openings, there are no photo opportunities. Mammon has had it and comes up with a final plan. Will he succeed...?