While buying a gift for her parents, newly graduated doctor Mi Ka is caught in a dangerous jewel heist—only to be rescued by a masked SWAT officer, Captain Xing Ke Lei. Years later, during a joint training exercise between her hospital and the police, Mi Ka crosses paths with him again, unaware of their past connection. As they face life-and-death challenges together, a bond begins to grow—one forged through courage, duty, and unexpected love.