In the era following a certain natural disaster, Jyougasaki Hichiki, an escapee from The Rebirth Training Institution for Boys, makes his living as a professional thief. A chance encounter with the mysterious and unfathomable "Bo-chan" – the enigmatic being who dwells within the Peppermint Highway Mansion – compels the curious burglar to infiltrate the run-down (but charming) household as a butler… But what does Bo-chan have in store for the eccentric Jyougasaki? (Source: MU)