On-in(Pinky) and (Jirat) Au are death gods, grim reapers, death agents or whatever you wanna call it. They escort the dead to the afterlife. Somehow On-in has an accident and becomes human. Even has a human she still has her death supernatural abilities?? On-in and Tol-Mon (Weir) are gonna fall in love but they can’t be together because he is human and she is a death agent. (source: asianfuse.net)