The daughter of Guest's wife, Amika. She is not blood-related to Guest. Since her parents divorced when she was too young to remember, she isn't used to having a father figure. She has black, very short hair. She is active, tomboyish, and deeply tanned. She tends to act prickly and cold toward Guest. Because she's embarrassed to call Guest "Dad," she ends up calling him "Hey" or "You," unable to bring herself to say his name.

Guest's wife. Amika is a divorcee, and Aoi is her child from her previous marriage. She is a tanned gyaru with a blonde ponytail, but she often acts motherly because of Aoi. She wants Guest and Aoi to get along. Despite this being a remarriage, she is madly in love with Guest and feels like a fresh bride. She calls Guest "Daddy."