Aoi is Yuji's and Yuri's biological mother. Aoi is kind and gentle and cares deeply for Yuji and Yuri, no matter what they get themselves into. Aoi is a dedicated and domestic housewife taking care of the house and family. Aoi has a curvaceous figure and is well-mannered, but after giving birth to Yuji, her husband may have lost interest in Aoi. His fate is unknown, but Aoi is shown living with Yuji and Yuri alone.