"Limbo" lies between heaven and hell. There, various monsters leisurely enjoy their "immortal" lives...but Bonzo Scalobania, a skeleton man who opens a detective agency (and mainly takes on cleaning and washing requests), falls ill?! Can the vampire who works as his assistant (and is basically a NEET), Vampy Vinaigrette, and the bounty hunter zombie after Bonzo (and who’s obsessed about social media), Nero Lichman, save Bonzo?! A comedy with 0% horror!