On that rainy night four years ago, Shen Nian took care of him while he was drunk all night, and in exchange for him saying "last night was an accident, don't worry about it" the next morning.
She didn't cry or make trouble, she just smiled and said "I know", then packed up all the photos of him and left.
We met again four years later. She was an internationally renowned photographer and he was a rising business upstart. On and off camera, he calls her "Teacher Shen" and she calls him "Mr. Gu", they are polite and polite, as if they have never met before.
He didn't know that he had kissed her while drunk, or what she had done for him, let alone that she had liked him for ten years.
Until he started to get closer, started to test, and started to feel empty and lost after she turned around. Until he discovered that during those four years when she was away, a photo she secretly took of him in college had been locked in the drawer of his office.
Until he finally understood that the girl he said was "just guilty" was the best light he had missed in his life.
But when he started chasing, she no longer wanted to wait.
"Gu Shennan, I have been waiting for you for ten years."
"Now, I won't wait any longer."