I always think that youth is very long, but it leaves quietly inadvertently. Ten years later, will those friends who said they want to accompany you to eat all kinds of delicacies and travel all over the country still be by your side? Did the boy who said he would always be by your side keep his promise? People should be happy when they live, and be brave if they like it; this is Liang Yan's youth, and it is also our youth.