Killie

The youngest member of the Bisons who joined the gang after Riki disappeared. He doesn't like Riki one bit when he returns and probably wants to prove that the others are wrong to mock him. He makes a deal with Katze, betraying his gang, but gains nothing - instead of being rewarded he is mindwashed and made into a pet. Iason gives him to Hazall as a present. Killie has different-color eyes - the left one is blue, the right one's gold, and curly light brown hair. His name (Killie is a version of Kiri in Japanese) is an anagramm of Riki, and he riminds everyone of Riki as he was at that age.