High school student Fang Yamaguang (Zhong Li Yi Sha) is an adult, but in her mind, the impression of her father Hasegawa is only the back of childhood parting. As a cinematographer, he is always busy, like a flying man in the air. Fangshanguang is only accompanied by his mother, Kazuko Fangshan (Chengmei Yasuda). As a result of the achievements in pharmaceutical research at the university, the lives of mother and daughter have taken a turn for the better. However, misfortune followed. Kazuko was involved in a car accident and left a sentence in his coma: "go back to the past and see you again." Light decided to help her mother realize her wish, so she used the drugs developed by her mother to travel through time and space back to the 1970s. However, due to technical mistakes, the time was wrong and went back to 1974 instead of 1972, so there was no clue to the husband. In desperation, she had to turn to a college student she met accidentally, Tai Liang (Mingqing Zhongwei), who accompanied her to find a husband. In Mrs. Liangtai's small apartment, light helped him fulfill his movie dream, while the latter gradually fell in love with her.