Accidental time travel: Modern deliveryman Zhou Yi was involved in a car accident to save a little girl. When he woke up, he found that he had traveled to the ancient Daliang Kingdom and became the son-in-law of the Su Mansion, a merchant's home. He faced a completely unfamiliar environment and identity dilemma.
Identity dilemma: As a son-in-law, the original owner has a low status. He is despised by his mother-in-law and treated coldly by his wife Su Wanqing. He also has to face difficulties from Su Mingyuan, the second roommate of the Su family, and is in a difficult situation.
Intelligent solution to the crisis: With modern knowledge, Zhou Yi proposed a dyeing improvement plan during the crisis at Sujia Cloth Village, successfully solving the problem of fabric fading, and initially showed his talent, attracting Su Wanqing's attention.