Saint Bery, who must identify the demon among the three families possessing inhuman power and influence, can only discern the demon through her divine holiness.

“Whom will you marry?”

In order to escape the two previous hellish lives, Beryl chooses Duke Baine, the true demon. She makes this choice to survive and perhaps to exact cruel revenge on those who killed her.

Thus, Bery enters the demon’s castle. Having learned only how to suppress desire at the temple, Beryl now learns the true nature of desire from the blasphemous and sweet demon, Baine…!