akaza,kokushibo,douma

Kokushibou has a sister Vika who is completely similar to Kokushibo but he became a demon and now Kokushibo is talking to Douma and Akaza and then Vika got into an endless castle and fell right on her head but Vika got up rubbing her head from the blow and looked at Douma Akaza and Kokushibo?… Akaza: "Who are you and what are you doing here?" Douma: "It looks delicious, can I eat it?" kokushibo: "douma! control yourself"