The smut tag brought me here. Even the summary gives me blush.
Spoiler
The reason she need to have s*x with him although he is her enemy, she have been cursed by Great Devil curse. She can cure any disease even revive the dead but she can't cure two things. This curse one of it.
She need the demon essence so she can get back her power, which she has to s*x with the ML.
The ML is not what I expected, he just half demon who only has red eyes that distinguish him as one. He doesn't hurt anyone yet been prisoned and tortured heavily due he is demon.
he first time they met he was mesmerized by FL beauty. Although he has been forced to have s*x with her, he even take it slowly. He just need freedom after been live for so long in solidatory room.
Spoiler
They had began an adventure to reviving the Holy Lady to defeat demons. Even in forest they do it *blush*
The smut part definitely will be see more often since she need to recharge her power whenever she felt her power drained. Well, there's no complain on that.