Five years ago, an accident caused Han Enze to lose his memory, and his love with his beloved Yang Qianmo came to an abrupt end. At that time, Yang Qianmo not only had to face the pain of her lover's "betrayal", her father died in an accidental car accident, she also had to take care of her seriously ill mother, as well as the burden of raising her and Han Enze's children. Five years later, Yang Qianmo came to Shimao Lanyu for an interview, only to find that the new president was her ex-boyfriend Han Enze, who was cold to her and did not recognize her at all. After Yang Qianmo joined the company, she had to deal with Han Enze, whom she loved and hated. He also has to face the hostility and difficulty of his fiancée Su Wanqing. As the contact increased, Han Enze's feelings for Yang Qianmo became more complicated. It gave him an inexplicable throbbing pain in his heart. The appearance of the children completely revealed the secret of the parent-child relationship. The love hidden in the names "Han Muyang" and "Yang Muhan" shocked his blank memory.
Han Enze began to trace the past, and gradually pieced together the unforgettable love between the two from the love letters in the iron box, the couple's rings engraved with "Ze Ai Mo" and "Mo Ai Ze", and the dragon and phoenix jade Perry that can be combined into a heart shape. He canceled his engagement with Su Wanqing, and conducted an in-depth investigation into the truth that his father and the Su family conspired to break up their family and cover up the cause of Yang's father's death; while protecting Yang Qianmo's mother and son, he fought against Su Wanqing's smear, frame-up, and kidnapping.
Yang Qianmo also gradually took off her disguise and revealed the true identity of "Mu Mo". Exposing the evidence of the Su Group's crimes and clearing his father's wrongdoing. Han Enze finally recovered the key memory. Back then, he was injured and lost his memory when he was trying to save Yang Qianmo. The subsequent separation was all a conspiracy between the family and the Su family. Yang Qianmo also put aside her years of guarding and chose to believe in love again.