On a snowy night in the middle of winter, at a mass grave, the poor Taoist nun Shen Qingci was searching for the remains of the Su family and saving her master's life. She accidentally bumped into Xie Linyuan, an orphan of the Xie family who was involved in an old case. A copper bell engraved with "Su" and a jade pendant engraved with "Thanks" bring back to the world the murderous murder of two big families twenty years ago.
One is gentle and tough, observing the master's instructions and investigating step by step; the other is cold and decisive, pursuing the murderer alone with a family full of blood and hatred. They formed an alliance because of a common goal, and stood side by side in pursuits and suspicions. From being wary of each other to gradually developing trust, from their tacit understanding when investigating cases late at night, to sacrificing their lives to protect each other at the critical moment of life and death, their hearts grew quietly in the shadow of old cases.
But when the truth was peeled back layer by layer, pointing to the powerful regent and the secret that the master had hidden for half his life, a life-threatening decisive battle was finally staged on a snowy night in Gonghu Lake. The bronze robes are combined, and the injustice is vindicated. However, some people will always stay on that snowy night when they fell to protect each other. Only one person is left guarding two lonely graves, clutching the double robes, thinking about the old person who will never come back in the falling snow every year.
Concept: Revenge between the two heroines