Gu Zihan is the eternal Liu Xue in Li Mo's heart. He studied architecture for Gu Zihan and closed himself off for Gu Zihan. Li Mo, who thought he would always stay in Liu Xue, changed everything after meeting Ou Jinyu, from a closed heart to a sunny and optimistic girl. But what kind of impact will the appearance of the unruly man Mu Ge bring to the relationship between her and Ou Jinyu? Will Mo and Yu's love really come to an end one day.