Rekka Shirogane

The main protagonist, and one of the titular Gaist Crushers of the show.A 13-year-old boy with a fiery attitude, his burning determination makes him qualified as a Gaist Crusher. He's also quite a glutton, as he can eat lunch boxes in seconds.

His Gaist Gear is Flame Fenrir,a gigantic wolf whose fang can tear apart any Gaist.