Akiyuki's Mother. A strong willed woman who cares deeply about her son and his typically overworking husband. Although the relationship between husband and wife are strained because of his frequent absence from the household, she remains with him for the sake of their child. She is a resolute woman, whom, upon discovering that her child had gone missing, has taking it upon herself to try and find her son, regardless of whether or not his husband is compassionate enough to abandon his work to help her. She has a very familiar relationship with Haru, and seems to be able to entrust his wellbeing to her, when later she was able to confirm that her son is indeed alive.