The top killer Ye Ciqing was betrayed by the organization. In order to save his childhood sweetheart Gu Yanqiu, he was blackmailed and died tragically with three stabs in the body. After turning into a ghost, she learned that Gu Yanqiu had loved her deeply for a long time and vowed to never let her down in her next life. The jade pendant glowed, and she was reborn as the eldest lady of the Ye family, and she also became Gu Yanqiu's fiancée by accident. She rescued Gu Yanqiu in a crisis and was regarded as a benefactor. Gu Yanqiu repeatedly slapped the villain for her. Later, Gu Yanqiu discovered her identity, and the two recognized each other and fought against the organization together. Ye Ciqing showed his strength as a killer and joined forces with Gu Yanqiu to destroy the enemy, and finally achieved success.
