In the last years of Dayong, the imperial power declined and the aristocratic families were divided. Shen Yanci, the sick and cold-blooded Hanlin Academy writer, is actually the orphan of the former dynasty and the mastermind behind the underground intelligence network "Tingxue Tower"; Xiao Jin, the young general who returned from the north, is the sharpest knife in the court. The two began to test and exploit each other, and gradually touched the obsession and pain deep in each other's souls during the game of intrigue. When the pay of the soldiers in the northern border was withheld and the aristocratic family was forced to go to the palace, they were forced to work side by side in the gap between the court and the battlefield. From the silent confrontation in the study room on a snowy night, to the life-and-death struggle on the border battlefield, to the joint efforts in the court to break the situation, the two of them peeled off their disguises and redeemed each other amid the tension between the righteousness of their family and their personal emotions. This is a long journey about faith, betrayal and rebirth. Two broken souls will eventually find each other's eternal light in the snow.
Purpose: In the troubled times of a declining dynasty, two broken souls, burdened with their country and past, recognize and redeem each other in the cracks of intrigue and battlefield, and finally find faith and belonging in the ashes and snow, interpreting the feelings of family and country and the brilliance of humanity in "keeping watch for the light in desperate situations".