When she was seven years old, the Yanmen Gate was broken, her father Shen Ce died in battle, and her mother Su Wan's whereabouts were unknown. Only a mysterious jade pendant and instructions became the only remaining marks of her childhood.
Ten years later, under the pseudonym "Ah Hong", she lived in seclusion in a Jiangnan bookstore and secretly inquired about her father. However, her peace was disturbed by Xie Yunlan, a young man in white. Xie Yunlan's life experience is a mystery, but he pays special attention to the old affairs of Yanmen Pass, and even sets his sights on the jade pendant around Ah Hong's waist.
The two teamed up because of their common obsession and went north to investigate the truth, but they were repeatedly hunted by the evil sect "Blood Shadow Sect". The secrets of the defense plan hidden in the jade pendant gradually surfaced, and the details of the Battle of Yanmen Pass that year became increasingly confusing - the father's "death in battle" seemed to have a hidden secret, and the mother's "sacrifice" was even more suspicious.
As the mysterious veil of the leader of the Blood Shadow Sect is unveiled, a past incident related to the justice of the family and the country and personal grievances emerges, pushing Shen Jinghong into a dilemma. Her relationship with Xie Yunlan also quietly changed amidst the turmoil in the world. The road ahead is long, the truth and obsession are intertwined. Can they find the answer in the fog?
Intention: stick to the decision