Kasen Tosu

She is 41 years old, Tetsuo's wife and a good friend. Her parents own a kimono shop called "Kimono no Tosu," which is known as a wealthy family, but they are already isolated from each other. She cares deeply about Tetsuo and Reika, and has the courage to do things that would be unthinkable. And also Tetsou and her wife was blood related. He was her cousin.