One day, Minoru receives a mistaken email from a woman named ``Akane.'' This email is the trigger for him to start a relationship with her, who somehow makes him feel nostalgic. A few days later, on the way back from shopping with her mother, Tomoe, she meets Akane again, but there she is, staring at Akane and making her face stiffen... This was a reunion between the mothers. ``My foster mother, Tomoe'' ``My birth mother, Akane'' They are Futoko.