Yoshifumi Nitta, a young yakuza with a taste for expensive vases, comes home one night to find a metal capsule in his apartment, and inside it a girl named Hina with destructive psychic powers. When Hina threatens to smash his porcelain collection unless he takes her in, Nitta reluctantly becomes her caretaker, only to discover that managing a telekinetic middle-schooler is harder than anything the Ashikawa-gumi has thrown at him.