Si Qing, a 15-year-old smart girl, and Wen Jin, a 16-year-old boy, met on a midsummer night. They met again in Class 1 and Class 3 and became classmates. She fell in love with him, but the secret love ended abruptly after they were separated into arts and science classes. Both of them were paying attention to each other secretly without knowing it, and they did not say that confession. After graduation, Si Qing and Wen Jin said goodbye silently, and they no longer seemed like old friends when they met again. She couldn't let go because Wen Jin was the only one who could give her a feeling that no one else could give her at that time.
Intention: Regrets during school days and people and things that cannot be let go