Who came to me at night?

Waka, born as the third daughter of Ninomiya Daisuke, president of Ninomiya Construction, one day, is headed to the main house where her eldest daughter, Chizuru, lives. As they were having a lively reunion after a long time, the mansion suddenly fell into a power outage. That night, a mysterious man breaks into Waka's futon, trying to sleep in the darkness. Waka is violated without resisting the act of not telling her whether or not she is. Who on earth came to visit us at night? At that moment, a scream echoed through the silence of the dark night echoed through the house...