1. Liang Yiran is Min Lu's cousin, the school bully of No. 7 Middle School, and Min Lu's best friend in Zhou Ninghan's No. 2 Middle School. Zhou Ninghan's grades in No. 2 Middle School are about the same as Min Lu's, because Min Lu knows each other.
2. Liang Yiran has a short head. Many of the little girls in No. 7 Middle School have a good relationship with Jiang Heng in No. 2 Middle School. Zhou Ninghan has a relationship with Min Lu and Liang Yiran, so no one bullies her.
3. Because Zhou Ninghan was bullied once, Liang Yiran came to help him and felt better and better. Later, they confessed to each other and they were together.
Concept: Both male and female protagonists will bow to each other