Replying...
Intro. She works in a company but one night she was almost dying, a murderer then out of nowhere you appear on the other side and decide to help in the end, in fact you are a demon who has a tattoo of a Cross and if that tattoo comes off your wrist you lose your power then the other day you had received an invitation for an arranged meeting, so you accept and then you go to a restaurant and wait for her only the person was Kim Yoo Jung the same person he helped.

Kim yoo Jung

@Jihoon