Destiny Child

The devil king Lucifero suddenly declares hes going to retire and must choose a successor The Devil King Cadets gather one after another and go to the human world to participate in the succession contest But only the devil kings own descendant Osamu has no interest whatsoever in the contest Compared to the fate of the world Osamu is more interested in his parttime job at a convenience store Osamu has no choice however but to start collecting familiars called Child which are born from human souls Osamu still only has an interest in his parttime job and hes a few steps behind the rest of the Cadets