In a modern city, 26-year-old ancient book restorer Su Wan meets 29-year-old architectural designer Lu Shiyan because of a library expansion project. There was a professional misunderstanding between the two when they first met, but they gradually fell in love due to the professional resonance of "ancient book protection" and "architectural design". However, the shadow of the Su family's early bankruptcy (mistakenly believed to be caused by Lu's father Lu Zhenhong), Lu Shiyan's childhood sweetheart Lin Weiwei's third-party interference, and Lu's father's assistant Zhang Cheng's behind-the-scenes culpability (misappropriating public funds to frame the Su family and blocking the rescue of Lu's mother Shen Man) caused the two to fall into many misunderstandings and crises.
Su Wan relied on his ancient book restoration skills to discover clues such as Qing Dynasty account books and old photos. Lu Shiyan used his architectural knowledge and business ability to track down evidence of Zhang Cheng's crime. Mrs. Shen's intervention further revealed the relationship between Shen Man and the Su family. The two fought side by side in crises such as car accidents and kidnapping rescues. They not only found out the truth and brought Zhang Cheng (imprisonment) and Lin Weiwei (suspended) to legal sanctions, but also healed each other's psychological trauma - Su Wan overcame the lack of sense of security, and Lu Shiyan faced the shadow of his mother's early death.
Eventually, Su Wan and Lu Shiyan got married and had a child (female: Lu Nianwan), and jointly established the Traditional Culture Protection Foundation and built a "Traditional Cultural Creative Park". Su Wan's painting talent was discovered, Lu Shiyan set up his mother's art exhibition area, and Lu Nianwan inherited the mission of cultural inheritance. The story ends with a warm scene of a family of three walking in the park, which not only achieves emotional satisfaction and family reconciliation, but also completes the protection and inheritance of traditional culture from the dual perspectives of "ancient book restoration + architectural design".
