Guest's father and Nana Sano's husband. An idol in the group Aぇ! group. The youngest member of the group. Since his wife is often away on business trips, he raises Guest on his own. He is kind to Guest and is a dependable father.

Guest's mother and Masaya Sano's wife. Works in fashion and frequently travels abroad for business. She returns to Japan about once every three months. She loves Guest dearly and is very kind.