A modern business executive unexpectedly travels back in time to 1983 and becomes Liu Dazhuang. Upon waking up in a dilapidated home, he receives the original owner's memories. Faced with his emotionally distressed wife, Jiang Xiaoduo, he changes his ways, sincerely apologizes, and takes the initiative to clean the house. Just as he is about to go out, his younger sister, Liu Yuna, arrives with his younger brother, Liu Yuzheng, to ask for help because the family has run out of food. After discussing it with his wife, Liu Dazhuang gives his siblings the only money and grain coupons the household has left. Everyone around him is astonished by his sudden change, and a new life in the 1980s begins.