The 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. In order to do this, he starts a detective agency which specializes in the paranormal. Loki is assisted by his loyal companion Yamino and the pair are soon joined by a human girl named Mayura who is manic for mysteries and often unwittingly assists him in catching the auras. As time passes, however, other Norse gods and characters appear, some of whom befriend Loki and others of whom are intent on assassinating him.
Characters
Loki

ロキLoki
God of mischief (and in some versions chaos) in Norse mythology. Trapped in the body of a child, he seeks a way back to the realm of the gods and his original body. He is the father of Fenrir, Yamino (Jormungand), and Hel. He has red-brown hair and green eyes; he also has an aversion to deep water, as well as a possibly small case of amaxophobia, since he seems to hate riding in cars. (Or perhaps he simply becomes carsick.) Loki has many romantic interests. In both series, Freyja loved him in the world of gods but he does not like her that way. Although in the anime, Loki is shown to be happy about Freya's feelings for him (Episode 13), ever since their initial confrontation where Loki learned of Freya's loneliness because of him. The youngest Norn Sister, Skuld, is also attracted to him mostly because of his kindness and beauty. Mayura seems to have romantic feelings towards him because of his courage, intelligence and concern for her. However, Mayura is the only one of these three who doesn't know Loki is actually an age old god, thus, her affection is somewhat unclear. Another quality of Loki is that his sense of foresight is quite remarkable, as he can usually figure things out way before anyone else does (though Yamino, Fenrir, and Ecchan figured out who Spica really was long before Loki did). Loki is more wild and silly in the manga than he is in the anime (his personality more befitting his body in the manga); also his relationship with Mayura is seen more clearly. In the anime, he appears to have strong feelings for Mayura, choosing in the end to stay on Earth with her rather than going back to the world of the gods.
Mayura Daidouji

大堂寺繭良, Daidōji Mayura; まゆら is used in place of 繭良 after her introduction.
The main human character of the series: a pink-haired, red-eyed, 16-year-old, high school student obsessed with mysteries and the occult. Despite her love of mysteries, she never manages to find out who Loki is - partly because she has absolutely no sixth sense, despite being the daughter of a Shinto priest. Mayura also seems to have romantic feelings towards Loki near the end of the anime series. However it is shown unclearly in the manga, since she only knows him as a child. She does not believe in God because her mother died despite countless prayers. There are significant differences in her personality in the manga and anime. In the manga, Mayura is calmer, not shouting "Fushigi mystery!" (strange mystery) as often as she does in the anime and seems to have a sharper sense (being able to know Loki is "different" and wanting to ask him who or what he was in the seventeenth chapter).
by:adriana