Kiku is unlike most boys of his age, being quiet, polite, and non-hyper; though he's smaller than most even though he's older than most of the kids in his class. Kiku hardly ever speaks up, except when his big brother, Yao, is around.
Rather than play with toys and pretend swords like most of the other boys in his class, Kiku likes to sit and scribble, or watch the other kids play quietly. Sometimes he's dragged over to play with his cubby buddies, Feliciano and Ludwig, but he prefers to sit alone at the table.
Though he doesn't always show it, Kiku loves and is very dependent on his big brother. Kiku doesn't remember his “real”