This is a campus love story. The two boys initially collided and rubbed, but later they supported and encouraged each other. They gave each other exactly what the other needed when they were most sad. They didn't need much communication to know what the other was thinking, because he was Peng Shi and because he was Cheng Nai.
The moonlight was beautiful that day, but was it really the moonlight that was beautiful?
No, it's the person under the moonlight