Mob, Reigen, Dimple, Serizawa, take a trip up to a secluded hot spring called Ibogami Hot Springs in Zebra Prefecture. Reigen happened to get a request from the matron there to discover the truth ...

When his boss Reigen calls, Mob helps him out even though he doesn't want to. His attempt to talk to his crush Tsubomi fails, too. Mob confides to his brother that he wants to get muscular and date ...