Liu Mufei, an ordinary girl who loves ancient poetry, unexpectedly met a person and a book just after she started her high school life. A boy named Ye Zhen, a Book of Songs that connects the past and present lives, and a somewhat psychic friend. Her past? Her future? Whether the person she cares about is separated or reconciled with her... When time is taken away bit by bit, and youth is erased bit by bit, maybe after all, we will hope to go back to the beginning, hope that we have not met you, and hope that we can shake hands and make peace with ourselves...