Hei Lang, a killer from a mysterious organization, suddenly used a dagger during a mission, assassinated his companions, stole the treasure and escaped. After being chased by the organization, he was seriously injured and jumped into the river, but was accidentally picked up by Mingzhuo who strayed into the border. When he was in a coma in the hospital, the treasure he was carrying was discovered, and a confusing case of the disappearance of the Shen family's youngest son also surfaced. Black Wolf lost his memory after waking up. From then on, Mingzhuo started to investigate him...
Concept: romantic suspense