Yui Komori, Kou Mukami, Yuma, and Azusa eating as usual in the living room. Ruki wasn't there. Recently Ruki has been in his room and his brothers have felt different than usual. At night, as Yui prepares to go to school, she is taken to the basement room by Ruki, who suddenly appears. There he is sucked blood and loses consciousness as it is .... Brothers who are confused by Ruki's words to seek Yui's blood to become Adam. After being trapped in the room, he continues to suck blood, and Yui's exhausted ears hear a familiar voice. When I looked up in amazement, I saw Ayato Sakamaki. (thetvdb.com)