Wang Yinuo (first heroine) is calm and rational, has clear logic, is organized and has excellent grades.
Chen Yixuan (male protagonist 1) is aloof and taciturn, cold on the outside but hot on the inside, highly focused, not good at expressing, and has excellent grades
Xia Anan (the second heroine) loves painting, dares to love and hate, has a straightforward personality, is full of energy, and has mid-to-upper grades.
Zhu Jingran (the second male protagonist) is lively and cheerful, talkative, warm-hearted, good at stirring up the atmosphere, and has average to upper grades.
Li Yuyu (Vicious female supporting role 1) is very good-looking and very competitive. She loved to make trouble in junior high school and got very, very good grades.
Liu Suya (Vicious Female Supporting Role 2) with poor grades (art student)
This is a story about growing up. Six boys and girls with different personalities met in the first and second classes of Dongcheng Middle School. From their youthful days in junior high school to walking into Tsinghua University side by side, they experienced academic competition, ignorant emotions, and the test and transformation of friendship. The calm Wang Yinuo and the aloof Chen Yixuan explore each other's hearts through repeated competitions and approaches; Xia Anan, who loves painting, and lively Zhu Jingran, infect the people around them with their enthusiasm. Li Yuyu and Liu Suya, who once made trouble everywhere, also met their own light in Engao. When the summer cicadas gradually fade away, the equations they wrote with their youth will eventually unlock the answer to the future.
