Lin Mo moved from a remote village into a strange county town because of his high school education. He struggled hard in the new life of loneliness and helplessness that followed. Chen Junying (Chen Xin) lost himself in the process of chasing stars (Mayday member Ashin), and later Later, under the influence of the cute but rebellious and willful He Chu, both of them became themselves and grew up into outstanding and responsible teenagers. Xiao Nuo and the old man, the left-behind children who watched the happiness in the sculpture square at the south end of Donghuan 3rd Road, were in the sculpture square. The wandering middle-aged beggar, the lonely old man Lin Mo's grandmother, the eccentric Chinese teacher Xie Huichun, the honest and honest country people, small vendors and urban management... And other people at the bottom of society. Through the transformation of the three life scenes of campus, city and country, it vividly reproduces the real life of a group of strangers who pass by each other again and again in an indifferent city but are always strangers. It interprets an ordinary but tear-jerking urban sad story of youth on campus.