Once they're done celebrating the completion of their home with a housewarming party, Nao and his friends are quick to make their next move. They head out to the east forest to earn some money, but an unexpected run-in with some unusual undead monsters means a quick change of plans—dealing with danger comes first, after all! When they hit up the Adventurers' Guild for information, Diola-san counters with a request to exorcise a mansion that's supposedly haunted. Nao's party accepts the job and immediately sets out for the overgrown estate, none the wiser about what awaits them there! Even though they have a house now, a peaceful life is apparently still out of reach...