Yan Qin, the descendant of the Immortal Yin Sect, first entered the world of mortals and rose to prominence. He was taken under the command of King Ying, the "most beautiful woman in the Tunyue Kingdom", and this opened the door to the world of Immortal Yin.
Between the two poles of the universe is the largest continent in the world. One of the oldest dynasties among the five major kingdoms is the Chunyu royal family of the Tunyue Kingdom, which has been in existence for more than three hundred years. When Yan Qin passed away, it was the time when Chun Yunuo, the son of the Tunyue Kingdom's God of War, returned to the royal family and asked Ying to march north. A descendant of the Immortal Yin Sect who has no knowledge of the world is gradually attracted by Chun Yunuo, who cares about the world. During the journey to the north, the two tested each other, admired each other, and had feelings for each other. They also witnessed a unique sadomasochistic affair that affected the entire world of Immortal Hidden.
Centering around the sadomasochistic relationship between Chunyu Luoying, the most beautiful woman in Tunyue Kingdom, and the regent Chun Yulei, countless people struggled to escape from their so-called fate. Each story gave Yinglei and Yinglei the courage to embrace everything and love. This is an immortal world that includes one immortal world, two polar regions, five major kingdoms, and twelve small states. It does not cultivate immortality, but cultivates the human world.