Kako is the tritagonist of the Oobi series.
Kako is Oobi's outgoing and overconfident best friend, who fancies himself a talented musician and artist. He is clever, dependable and quite goofy at times. However, Kako is shown to get frustrated easily if things do not go his way. In these situations, he can always count on Oobi and Uma to help him overcome his problems. He thinks that Oobi is the most "perfecto" companion he could ever have.