Loki, the Norse god of merriment and mischief, was banished to the world of humans for yet another failed joke. Moreover, there he is forced to live in the form of a 10‑year‑old child. Loki can return to the world of gods only if he gathers the auras of evil that have seized human hearts. To ease his search, Loki opens a detective agency. Soon he has an assistant, a girl named Mayura, obsessed with all things supernatural. Other Norse gods also appear in our world, but most of them, for inexplicable reasons, seek to kill Loki.