A mid-level Yakuza, Yoshifumi Nitta, relaxes at home when a large metal pod drops onto his head out of nowhere. After hitting a switch on the back, a naked girl emerges from the pod. Remembering nothing else except her name, Hina, she uses psychokinesis to threaten Nitta into buying her clothes and toys. Nitta soon realizes that he's become her de-facto guardian. When Hina asks to enter school, Nitta offers to enter her in a nearby school if she stops using her powers. After an awkward introduction, Hina settles in to her new school. However, her power builds up too much and ends up exploding inside Nitta's aparment. Later, Nitta makes use of her powers to clear off a plot of land for his company. After the job is over, Nitta is called in by his Yakuza boss to take revenge on a rival group. He accidentally convinces Hina to do the job for him, as she uses her powers to wipe out the entire enemy office by herself.