Reiko Akutsu

Mother of Riko Akutsu, and a former gyaru. She and her husband are always flirting and acting lovey-dovey at home, which results in her daughter not wanting to stay there and staying at other homes, especially Ooyama's.

She was a delinquent herself, as she also hung out often in her future husband's room, and she behaves very much like her daughter.