Li Lan'er jumped off a building due to bullying on campus. Shortly after her death, the school selection rate of Changwu Middle School students dropped significantly. At this time, Li Lan'er's best friend Song Xinya had just returned to school from participating in the Mathematical Olympiad competition. After learning the news, Song Xinya devoted herself to finding the murderer. In the process, she met the police captain Li Chenyu who had a sense of justice, and the story unfolded.
Purpose: Use legal weapons to resist school bullying.