Desks, playground, teaching building, library, tree-lined avenue, graduation photos. From the moment they first met in kindergarten, Baozi has been "overcoming obstacles" all the way, defeating Zhenqingmei, repelling Tianshengmei, defeating the little temptation of his deskmate, and the gentle approach of his senior sister! Defeated all the monsters and ghosts that came close to Bin Bao (no!). From a childlike child to a young man, Sun Bin will always have her by his side. During the long time from elementary school to college, they met all kinds of people, experienced tears and laughter, grew up side by side in the company of friends and the guidance of teachers, and carved each other's names into their entire youth.