Freelance comic artist Su Wanxing is entrusted to pick up her nephew, and by a twist of fate picks up Lu Xinghe, the son of Lu Chenyuan, the richest man in the city. Xinghe, who suffers from selective mutism, is exceptionally close to her, breaking his eight-month silence of not speaking. Lu Chenyuan hires her at a high salary to serve as Xinghe's exclusive growth companion, and Su Wanxing thus moves into the Lu family. During their time together, she discovers the secret of Shen Ruowei's harsh discipline of Xinghe, thereby drawing consecutive harassment and malicious retaliation from the Shen family. Lu Chenyuan always stands behind her to escort and protect her, and the two gradually develop feelings for each other in the process of jointly protecting Xinghe, moving from an employment relationship to a bidirectional journey, and step by step healing Xinghe's childhood trauma.