Utgard-Loki

Utgard-Loki ウトガルドロキUtogarudo Roki is the "other" Loki, who held half of Loki's power—Loki identifies Utgard as his past self. He is the King of Utgard, Land of the Giants. When Urd killed Utgard Loki in the manga, Loki got his power back. He seems to have a strange obsession over Spica.