Qiu Xuan: He was originally a male study committee member of Class 3, and once the whole class was under his leadership, Class 3 won the district "Advanced Class", winning glory for Huamei Primary School and Class 3. Li Hua, the head teacher, specially asked him to manage Class 3 comprehensively and became the head of Class 3. He has a talent for mathematics since he was a child, and he is a math bully, and Mr. Wu Ning likes him very much. He is very considerate and gives him the nickname "Warm Male Xuan". As the class leader, he always takes the lead in any situation, and is the right-hand man of the two teachers, Li Hua and Wu Ning.

Dong Mobo: He was originally the squad leader of Class 3, because of Qiu Xuan's excellence, Qiu Xuan became the squad leader, and he became the deputy squad leader of Class 3, but this never made him negative, he is still the most effective person in Class 3, and his style of work is vigorous and resolute. He is very cold, rarely talks and laughs with his classmates, always sits in the fourth row of the classroom, playing the game "2048", and is nicknamed "Gao Lengbo".

Jiang Shengyi: She went from a quiet little girl who sat by the window in the third row of the classroom and usually looked at the green creeper outside the window, to a female study committee member of class 3 after continuous efforts. She is also a well-deserved class flower, and when she entered the senior year, she was favored by many boys. She is a sunny and optimistic girl who loves to laugh, and she is good at literature and art, and her classmates call her "Wenyi Sheng".

Tong Yujie: He was born in a wealthy family, but he never showed off, which was appreciated by teachers and classmates. He is also a class 3 class grass. He is good at Chinese, loves reading, and has a good family environment, so that he has received a good education, is erudite and knowledgeable, very literary, and the whole person is full of bookishness and language domineering. Since Qiu Xuan, the former male study committee, became the class leader, he has also been affirmed by the teacher and has become the current male study committee member of class 3. He is a "warm-hearted" man who loves to help his teachers and classmates. Classmates also call it "Funny Bijie".

Chen Hao: He is sunny, handsome, lively, cheerful, has a musical talent since he was a child, and is a member of the music committee of Class 3. By chance, he was selected by the "Morning Star" economic company and became a trainee, and in just one year, he debuted as the lead singer of the "cony" group. Female classmates all call him "lead singer morning"

Xiao Shaobin: He is simple and cute, he is a foodie, and his motto is: "Don't work hard to eat and drink today, try to find food and drink tomorrow." "For him, eating is the most important thing. As a foodie, he also tells himself all the time: "You have to study hard and make progress every day!" If you study well, you can know more things to eat! His classmates called him "Foodie Bin".

Yi Yuqi: She is from the United States, she is of mixed Chinese and American descent, and she transferred from Los Angeles to Huamei Primary School in the second grade. She is the most temperamental and fashionable student in Class 3, good at art, and is the art committee member of Class 3, nicknamed "Fashion Qi".

Li Hua: She is the homeroom teacher and Chinese teacher of Class 3, the eldest sister of the classmates, gentle and considerate.

Wu Ning: She is the deputy class teacher and math teacher of Class 3, she is strict and beautiful, and under her discipline, the grades of the students in Class 3 have always been at the top of the grade.