At the age of 16, Bai Se confessed to Ye Qingxin in her English homework book: Dear teacher, I want to be your girlfriend. (Dear teacher, I want to be your girlfriend.)
Teacher Ye replied with delicate handwriting in vermilion ink: Little girl, you are too young. (Little girl, you are too young.)
At the age of 18, Bai Se went to college. When she and her boyfriend were walking on the university campus, they met Teacher Ye again. He looked at the two people holding hands and nodded lightly, but said nothing.
At the age of 20, Baiser took Ye Qingxin's course on the history of English literature. His attendance rate was 0, but he passed in the end.
At the age of 21, Bai Se applied for Ye Qingxin's graduate school, only to learn that he had been single for five years.
At the age of 22, Bai Se unexpectedly discovered his high school homework book at Ye Qingxin's house.
'Dear teacher, I want to be your girlfriend.' (Dear teacher, I want to be your girlfriend.)
'Little girl, you are too young.' (Little girl, you are too young.)
However, below this line of words, there was a line of vermilion writing at some point: But I will wait for you to grow up. (But I will wait for you to grow up.)