Shuuko appeared in many episodes of the first series. He and his wife wanted their son Marucho to stop playing around and learn many tough subjects. Marucho did it all to make his parents happy until he started playing Bakugan and joined the Brawlers. He appeared again with his wife saying goodbye to Marucho when he and the other Brawlers decided to go to a portal that leads to the center of Vestroia.