Kissu became the best friend of Beet. When Beet left to train, Kissu joined a group of Busters. One day their group encountered Sir Baron and had Kissu attack to stop him while the group ran away. Sir Baron decided to kill them for running away and left Kissu bewildered.After that he stopped trusting humans and joined Grineed but Beet helped him to trust humans again after defeain Grineed. He is often called a duckling by Slade. Kissu happens to have a crush on Poala. He has mastered performing the attack called he calls frozen wave of divine blue. He wants to help Beet end the dark age. Beet and Kissu met when they were only 12 years old.He is the third member of the Beet warriors. in volume 11 when Sir Baron returns Kissu was scared to death and can't move, and when he uses his Fierce Ce