Only the youngest and brightest squirrels can become the leader of the squirrel squadron, and Mukumuku has clawed his way to the top! He guides Makumaku, Mekumeku, Mikumiku, and Mokumoku to become better squirrels and better citizens of the world. After watching Riou and Nanami do martial arts for years and years, he has perfected the art and can bring down his enemies with it. He can use his smarts and fighting ability to protect his fellow squirrel friends, but he also uses it to dismantle all of his enemies in the Arena. He fights on so one day he can go home, settle down, and have a family with his cute little lady Mikumiku. Never has there been a nobler squirrel with more mad fighting skills!