Waka, who was born as the third daughter of Ninomiya Construction President Daisuke Ninomiya, decided to head to the head family where the eldest daughter, Chizuru and his wife live, at a family gathering one day. When the flowers are blooming for the first time in a long time, the mansion suddenly loses power. That night, a mysterious man invaded Waka's futon trying to fall asleep in the dark. Waka who was violated without resisting the act of saying nothing. Night ● Who came to Japan ...? At that time, a scream that cuts through the silence of the dark night echoes in the house ...