A murder occurred in the school. As a friend, Cheng Ying must cooperate with her rival Sullivan to find out the truth. Whether it was suicide or homicide, everything remains a mystery.
Cheng Ying, a genius in science, has very poor English. Afraid of trouble, she was extremely concerned about the fact that Sullivan was better than her in science.
Sullivan, an all-around genius who plays the piano well, is the prince in the hearts of girls. He looks gentle on the outside, but is actually an extremely sinister man.
Tang Xue, Cheng Ying's best friend, it was her inexplicable death from falling from a building that led Su and Cheng to join forces.