Loki has long red hair tied into a single braid and he has a total of four beauty marks: three under his right eye and one at his lower left lip. He also has pointed ears. Loki wears the school shirt, tie, pants and vest, but he wears a long hooded jacket over it, with boots. His pockets are always filled with all types of pranks and candy. In deity mode, he has horns on his head, and his hair grows more fiery, with his formerly single braid splitting into three braids. He wears somewhat of a cutout bodysuit, extending to his hands and ending as short shorts, with jagged cutouts at the front and back. He also gains a tattoo under his stomach. He has a red flaming fur boa attached by a black heart brooch, and wears long black boots with heels. Like all the other gods, his eyes turn golden.
-Story-
Loki appears after Balder trips and falls on Yui, putting them in a compromising position. He helps Balder up and glares at Yui for some reason, possibly out of jealousy. He then tells Balder he has spotted the Greek gods. He is next seen in the hall listening to Zeus before attempting to attack him, along with Takeru. When Zeus puts the restrainers on the gods, he reacts in shock before leaving with most of the gods. He pulls a prank on Takeru drawing a fish, monocle, moustache, and a beard on his face before running away from the raging god. Later on, Yui and Apollon find Loki talking to Thor about killing Balder and since Balder is Loki's closest friend he is reluctant to do so. Loki makes a special blade with mistletoe, the only thing that can kill Balder. Loki and Thors limiters break when they are trying to save Balder.