Rein (レイン, Rein) and Kyle (カイル, Kairu) are a friendly team met by Zatch in southeast Asia. Their spells revolve around brute strength. One of Zatch's friends from the Mamodo World, Rein is a large and powerful Mamodo, who nonetheless does not want to fight in the battle, both due to his own reluctance to hurt people and his bookkeeper Kyle's timidity. Although typically seen as a massive, bear-like creature, Rein has the ability to transform into a human with light blue hair. Sending Zatch a letter to come and remove him from the tournament, Rein is soon set upon by Purio and his new partner, Faudo cultist Rodeaux . With the assistance of Zatch and Kiyo, and some newfound confidence from Kyle, Rein succeeds in driving away his assailants, at which point Zatch honors his request by burning