Kukaku Rakukakuka

Kukaku Rakukakuka (쿠카쿠 라쿠카쿠카) is a Regular. He was one of the people that traveled in Koon's bag throught the floor of test. He participated in the Crown Game with Blarouse and Grey, and helped Koon by attacking the other participants. He was assigned to the Light Bearer position.

Kukaku has no eyes or mouth, and never talks. He fights using extendable claws.

After the crown game, he did not participate in the joint test anymore.