Ka is an evil shadow monster who battled against the Monkey King and his companions.
The Monkey King destroyed him by summoning all of his energy in a blast that turned Ka into millions of shadow shards but sadly the monkey king was gone too. Then all the five companions spreaded in the land of Ook and then built five tribes some but maybe all named are Mek Tek, Ice Raiders, Chim Foo, Sea Dragons and the Ootu Mystics. Now the monkeys are trying to get monkey king back at least his soul or spirit. Anyway, Sadly Ka has returned to Ook and now he is planning to rule the monkeys make them workers and kill every single nice thing in Ook.