Love in Devil

Zhao Lu is three hundred years in the past, in a world that is not her own, looking for the Demon Lord Lin Fangzun so that she can kill him. On her wedding day he wiped out her entire family. Killing him first, before any of that has happened, is her way of getting them all back. Not long after she arrives she strays into a forbidden ground and frees a young lord called Mu Ting, who is being held prisoner there. Mu Ting owes her for that, and he goes with her to look for Lin Fangzun. It is some time before she learns that Lin Fangzun is Mu Ting. Until then the two of them travel together looking for him.