성별 : 정보신청
생일 : 정보신청
키/몸무게 : 정보신청

The self-proclaimed mother of Kiyoko. When Kiyoko is abandoned by her father, Sachiko falls into despair and prepares to commit suicide before Kiyoko is returned to her. In a strange turn of events, it is revealed that Kiyoko is not Sachiko's biological daughter.