In the scorching heat of summer military training, Bian Xiaoxiao was caught off guard by a bottle of ice water and saw Gu Yu. The young man's dazzling smile was like sunshine that dazzled her all summer. She thought this was just an ordinary person's heartbeat that ended in vain, until the class list was announced - that Gu Yu with a beautiful smile became her classmate, and even her back seat.
Gu Yu always has English questions that she "doesn't know" to ask her. There are secret relationships hidden under the papers, and a small group of four people gradually takes shape: Xia Ran, who is lively and loyal, her loyal dog-like hair boy Chen Ye, and Bian Xiaoxiao, who always catches the gentle light in Gu Yu's eyes. The screams of the playground, the laughter of birthday parties, and the fireworks in the cafeteria fill the canvas of youth.
The disappointment of the sophomore class was easily healed by Gu Yu's waiting in the corridor between classes. The seniors sprinted side by side, agreeing to go to the same university.
