Based on the erotic doujin game by Daijobi Kenkyuujo (ダイジョビ研究所).

Standing up against the demon army that suddenly invaded the peaceful human world, Knight Luvilia confronts the Demon King, Vois. With the Demon God, Tia, Vois defeats Luvilia and makes her into his property. Luvilia shouts and cries telling him to stop but can’t stop moa...