Five years ago, Su Zhao was forced to sign a divorce agreement and went far away, raising her daughter An'an alone while struggling to make a living. Years later, she returned to Haicheng with the child, unexpectedly reuniting with her former lover Jiang Xubai. At first, Jiang Xubai was full of misunderstandings and kept his distance from Su Zhao everywhere, but as things happened, the truth gradually came to light. Upon learning that An'an is his daughter, Jiang Xubai was filled with guilt and determined to protect his wife and daughter while thoroughly investigating the conspiracy of back then. Amidst storms and trials, the two parted the fog, joined hands to fight against malicious people, protected their child's safety, and slowly untied the emotional knots of the past.