Ask for a novel name

The story started from the protagonist's high school. The protagonist loved to fight in high school and often used a small knife, so he had a nickname similar to a small knife. Before the college entrance examination, he fell in love with a girl who was very good at studying. He was a sports student when he was in college. The most memorable scene was when a dog snuck into the school and bit a beautiful female teacher. Later, the teacher became the protagonist's lover. Also, in high school, when the protagonist and his girlfriend were sitting in the front row of the classroom, the protagonist would always pull his girlfriend's underwear belt from behind. He and her girlfriend even had sex during supplementary classes. Sorry, it's a bit messy but that's all I can remember. The style of writing is similar to the grass age, and the time is almost the same. I'll definitely thank you when I find it.
I remembered something else. The protagonist's high school only had two people who got into university. It was the protagonist and his girlfriend. The protagonist got into university because of his sports specialty.

Answer 1

For the name of the novel, you can refer to the following example:
Sword Comes
This novel was about a Chinese youth named Chen Changsheng, who gradually grew into a top-notch swordsman in the process of cultivating his swordsmanship. The novel won the favor of readers with its unique narrative style and wonderful battle scenes.