After Lin Sui, a modern white-collar woman, dies suddenly, she travels back to 1985. The beginning was hell mode: the original owner was lazy and slovenly, and sold her husband's work materials as scraps for some snacks. Lu Zhengran was so angry that he wanted a divorce on the spot. Well aware of the tragic consequences of being "divorced" and returning to her hometown, Lin Sui calmly agreed to the divorce, but put forward a condition - help her register her residence in the city. While waiting, she began an amazing transformation: from paying attention to personal hygiene and learning to cook to determined to lose weight, clean up the mess left by the original owner, and deal with the scheming green tea. Her huge transformation confused Lu Zhengran, and the relationship between the two also changed quietly and subtly.