In the 1970S, Educated Youth Returned to the City

(Space + filial piety + era + time travel) Shen Ling has been living abroad for many years, and everything in the original family has been replaced by a substitute sister. Her parents' love, a good education... Everything that belonged to her was replaced. She even had to go to the countryside on behalf of this younger sister... "Your sister is not in good health..." "Your sister can't bear this hardship..." Shen Ling struggled and was sad! But nothing could be changed, and she finally made it back to the city.