Chen Xu had been living in confusion for more than ten years, until a new teacher came to his class in his second year of high school, a math teacher with a particularly good-looking smile.
From then on, Chen Xu, who was a bad student in everything, turned into a bad student in everything except mathematics.
Later, with a word of encouragement from that person, Chen Xu gave up walking on the single-plank bridge in the sewer for more than ten years and walked on the Sunshine Avenue.
Intention: I want you to know that all my efforts are to follow in your footsteps