Gary, a boy, biographies all the characters.

Li Jia: Male, a junior two student (1), honest, strong and independent. Smart, witty, enthusiastic and brave, sometimes strange tricks are repeated and self-defeating. I also like throwing smelly socks and playing practical jokes. Peeking at my sister's diary, I often worry about having my sister, despise my sister and like to play tricks on her. Together with Chen, they are considered as the coolest boys in Grade Two by girls. There are many ideas and opinions. Famous saying: only boys suffer in the world, and those who have never been boys don't know.

Zhisheng Lu: Male, fat, smart and reckless, likes to make a fuss. Girls have a good relationship and like to brag. He is humorous, has a sense of justice, has a strong sense of collective consciousness, and is loyal and honest to his friends, but he is a lazy and sloppy figure in his studies. An honest and optimistic happy boy. Zhang gave him a nickname, Dacaibao.

Chen: Male, a genius who races against the clock. He chewed on mathematics and physics and didn't relax, solving problems until midnight. Tall, thin, timid, sensitive and excitable. There are still many inventions, such as "electric earthworm", which are being patented.

Zhang Xiaosan: Male, sophomore,1.75m, likes to stroke his beard. Father runs a bakery. Handsome everywhere, astronomy and geography stocks can talk, some fake models, loyal to teachers. Shoulder width and nose height, split hair, brand-name clothing, riding a brand-name moped. He fought Gary, but he was defeated several times.

Wang Xiaoming: Female, from Class Two. Her composition is too short and poor, like sending a telegram. Go to 1 class, write to Gary at every turn, and finally write "Please don't tell anyone". Worship Gary, think Gary is her hero, and smile at Gary San Xiao every day. But Gary despised her and thought she was just a flashy girl. She is very talkative and full of enthusiasm for Li Jia. Because of her special cross-class experience, she is very efficient in transmitting messages between 1 class and class 2.

Feifei Zhang: Female, Wang Xifeng's fiery daughter, and Zhang Shuan are half brothers. He looks very prominent and tall. Be sophisticated. Jealous of Zhuang Jing.

Zhuang Jing: Female, a poetic girl. Have the gentle temperament and delicate face of ancient beauty, love to wear light-colored dresses and love cleanliness. His excellent grades are comparable to Chen's, and his math teacher Yan commented that his "right brain is particularly fine". I like calligraphy and poetry. I love books as much as my life, and I write beautifully. Be friendly to others, never speak ill of others, and be concerned by the boys in the class. Gary admired her very much.

Liu Geshi: Male, wooden, pedantic and brain-dead, but upright, dare to compete with hooligans and zebras of the same grade; Stuttering is not accepted, and students often joke. One father is a theater manager. Girls can't get along, but some girls trust him in their hearts, although they don't talk much to him. Zhang smartly laughed at his stubbornness, so he lived unhappy.

Teacher Cha: male, 1 class head teacher, young Chinese teacher, teaching experience 1 year. The online novel he wrote was valued by the TV station, and he was seconded by the TV station for two months, and the novel was rewritten into a sitcom. Calm, kind, kind-hearted, fresh-thinking, sharp-eyed, he is Gary's idol. Ironically, the students who make small moves in class are also eloquent and convincing. The mantra: calm down and sharpen your knife.

Mei Jia: Female, Gary's twin sister. Naive and lively, kind-hearted and compassionate. Generous, understanding, fragile, lazy, credulous. General talent, full of femininity. I like telling short stories, but I never say yes. She likes fortune telling and astrology, saying that Gary is her nemesis. Being loved by his parents at home has been bothering Gary.

Jia Dad: 40 years old, strict, stuffy and sometimes funny. I want to be a writer. I really want to work in a TV station and work hard for it. Calling my son "Your Excellency" every day is cynical and harsh, but he loves Jame in every way.

Mama Jia: A member of the troupe. Think of Gary and Jamie as a child.

Lin Ping: I met Li Jia in the hospital, Alin Daiyu's figure, but more lively than Lin Daiyu's.

Shang Hong; He used to be the most critical person in the class. Because of his fat body, he was called "Fat Elf" and "Carmen" by Li Jia. Later, he was transferred to another school and told the judge like Li Jia.