An urban woman, Shu Yi, is always polite. Such politeness can push people away. She never tells anyone about her experiences. In the eyes of others, she - Shu Yi, is a woman without a past.
Zhaodi, a child from the countryside, is cautious and cautious. Because he is not a boy, he is not taken seriously by his family. By chance, he becomes the only lucky boy in his family who can go to the city to study. The unkind city has a kind scenery. She, Zhaodi, grew up in the beauty of suffering.
This summer, let us enter the world of Shu Yi and Zhao Di, see the scenery they see, walk the path they have walked, and experience the inextricable family, friendship and love. In "Swing on the Wall", there will eventually be a relationship that belongs to you.