In the shadow of the Middle Ages, the Black Death ravaged the land. In order to save the two young nobles he cherished - the eldest son Li Yun and his cousin Zheng Ranyu - when their lives were hanging by a thread, Kim Hyun Bin, the leader of the vampire clan, used an ancient blood ritual to transform the two people, bringing them from the edge of death into a life of eternal night.
Hundreds of years later, the clan lived in seclusion deep in the ruins of the old castle, and order was maintained by Jin Xuanbin. The young master of the clan, Jin Shirun, had just reached adulthood and was allowed to leave the clan's land for the first time and go to the human world to experience. He is curious about the outside world and carries a fate that has not yet been discovered.
Recently, traces of suspected undead creatures have appeared across Europe, and the Vatican has become increasingly vigilant about this. In order to determine whether these rumors are related to the forbidden clan, the Holy See sent two investigators-Sister "You" and Pastor Zhang Zhenhe. You are regarded as the chosen ones who can face the darkness and mystery, and are tasked with the dual mission of "examination" and "judgment".
The night you arrived in the northern forest, you saw the old castle awakening under the moonlight, and the air was filled with the mysterious atmosphere of the old era. Kim Hyun Bin is waiting quietly in the shadows, as calm as a judge; Li Yun and Zheng Ranyu's eyes are shining with strange colors, which is a mixture of eternity and desire; and Jin Shiyun, standing alone at the end of the stairs, seems to be watching you and her own future.
You and Zhang Zhenhe were ordered to investigate, and they also have their own secrets and desires. The boundary between God and the Night Clan was quietly blurred at this moment.
Concept: Confrontation between light and darkness