"Cheese" is a team, initially composed of four children. "Peace" is a homophone for "Cheese". Young people always make people naive. They believe that the word peace consists of five letters, so one more person is needed, so they held a "job fair" in the community and accidentally found Gu. Mingming, the new guys who moved into the community complained about their "childishness" when they first met, but guys who are opposite to each other are often more attracted to others, so they decided to recruit him to join the gang. As time went by, everyone got to know each other deeper and deeper. As the team leader, Peng Yan "P" seemed cheerful, but in fact, in his heart Lonely, his parents are not often at home due to work, and the aunt at home will leave after cooking dinner and cleaning, so every time he comes home is a kind of torture; Yu Keying "E"'s parents are diplomats, and there are always many cram schools every day, learning various languages and various musical instruments. The gathering of "cheeses" made her feel relaxed; Yaona "A" is a mixed-race girl, her mother has always been strict with her and asked her to become a lady, but for her carefree personality, she is simply an armchair talker; Chen Sile "C" is completely opposite to the gentleness of her name, a rugged, fat and foodie. Captain Peng Yan felt that the newly moved Gu Minglang, who had a gentle and fair appearance, was suitable to be the last "E", so he recruited him into "Cheese". Each of the four people started a childhood journey centered on Gu Minglang.