You Were Supposed to Go Undercover, Not Reach the Summit

Peak Mistress: "You don't want your identity as a demon exposed, do you?"

Ye Jin transmigrates into a demon spy embedded deep in a human sect.

On one side is the Peak Mistress, eager to drain his life force. If he resists, he'll die.

On the other is a mission assigned by the demons. If he fails, he'll be abandoned.

In that case, I'll just do it myself!