Kai Undo 雲童塊

A young man with good reflexes who holds numerous positions on more than one athletic club. He is the head of the Udegumi, a group of popular all-around athletes. However, he is completely useless at anything non-athletic and will often go in a corner and begin training during class. He is in fit shape from training all day, be it in class, at home, or anywhere else he goes.