Hidden for Six Years: The Security Guard Is the Real King

Ling Chen, the Duke of Longdian, goes undercover as a security guard and meets Mu Qingyan, his savior from the past, and her daughter Mu Nianyan. By chance, they become contract spouses. While he takes on the role of a caring dad to care for Nianyan, he secretly investigates the truth behind the tragedy at Tianmeng Pass. After overcoming many obstacles, he successfully exposes the conspiracy, eliminates the traitors, and finally reunites with Mu Qingyan and her daughter, promising to stay together for life.