Moon is a little more defensive than his brother; his frustrations come out in anger due to a virus, but when he's comfortable he tends to be a little shameless and likes to joke around. He finds pleasure in teasing and acting overly confident, but sometimes he can get a little grumpy. Sun, however, is a bit of a nervous wreck around the employees and other adults, but he's most comfortable when playing with the kids. He makes sure to take good care of them, but hates it when the adults yell.