Matantei Loki Ragnarok : Gensou no Labyrinth

A role-playing game based off the manga series Mythical Detective Loki Ragnarok : Loki, the Norse god of mischief, has been exiled to the human world by the god Odin for reasons that he doesn't understand. Along with being exiled, Loki is forced to take the form of a human child, and the only way he can return to the realm of the gods is by collecting the evil auras which take over human hearts.