She is the concubine of the prime minister's house and the "white-robed" killer who is feared in the world. She has her arrogance and her nobility, but she only gives up everything for one person. And he, carrying the mission of revenge, practiced magic at all costs, just for revenge. He is a killer, a man of the world; she comes from a scholarly family, and there is a huge gap in status. Can the two of them who are in love with each other hold hands? Some people are holding hands to the end of the world, and some are looking for medical treatment all over the world, but what about them? Yin and yang separated or let the crane return to the forest?