Liu Yanfang, due to carelessness, allowed the helper in the store to abduct her son. Since then, she has been guarding the noodle shop waiting for her son to return. Eighteen years later, the noodle shop was forcibly acquired. During the dispute, she met Su Yunchen who came to help. With the long-life lock, the mother and son finally recognized each other. But Su Yunchen, who was the president of the Su Group, was mistaken for a security guard. Relatives and friends taunted and suppressed Liu Yanfang everywhere because of her identity, and after learning Su Yunchen's true identity, they all regretted it.