Nagi Kyouichirou

Kuurin isn't his real daughter, he adopted her after the disaster of 1996, when he met her in a hospital. At that time, Kuuri was completely amnesiac, however, no man could approach her because she was having hysterics crisis at their simple mere sight.
Her body had traces of wounds caused by men, spread over a very long time. She had to be beaten.
They thinked she was probably "raped" several times in the past too.

Having forgotten her rape, his daughter continues to make nightmares every nights of her atrocious moments, but doesn't know and remember why when she wakes up in panic. He confided to Tsukumo his disengagement because he can not help her.