Yiji and his friends lived in an ordinary second-tier city. When Yiji was a teenager, he was full of countless fantasies about the future. He became melancholic and taciturn due to family changes, and was no longer sunny and cheerful. But when he met a person (Yi Yan) who made him pick up his life again by chance, many things happened between him and him... Our Yiji is very silly, very naive, very middle-class, very lucky