17-Year-old Su Liuse met Shen Qingchen, a 21-year-old who had just graduated from Tsinghua University. He came to Su Liuse's school to teach for them. Su Liuse had his first heartbeat, and finally got entangled with his teacher, but was found to have experienced the pain of separation for four years. When they met again, they had become colleagues and they would never be separated again.
Intention: Explosion of inspiration