No. 1 Middle School in a certain city is one of the provincial key middle schools. The hot late summer welcomes a new class of high school students. They are a group of high school students who are sunny, active and motivated, have ideals and good academic performance, are obedient to their parents but have their own opinions, respect their teachers and have their own novel ideas, are sincere to their friends, and can be frank about love. They have no regrets about their high school life. Liu Jianhua and Jing Mingjie are members of them, competing with each other to be the outstanding class collective and class president. There is always competition for success in various activities organized by the school. They matured day by day, and later they fell in love. They dreamed that they could be admitted to the same university and be in love for the rest of their lives. They didn't know how their fate would be arranged... After high school life, Jing Mingjie said with emotion: My high school life will become boring without you. Even college life and my whole life without you, I don't know how to live. Really my world cannot be without you...