Park Xiqing, a freshman at Zhengyi High School, is an ordinary middle school student with excellent grades and a cheerful personality. However, she was used as a drug experiment by the black organization without knowing it... When she was completely kept in the dark, she met Yin Zhansu, who was transferred to the class, and Mu Zhexun, a fellow senior at the same school. The three of them came together to start a series of nonsensical and funny events. But when hope Qing's junior high school teacher came to teach in high school, everything changed subtly... After hope Qing knew the truth of the whole thing, she felt like a different person. Her academic performance dropped all the way. She only wanted to find an organization to avenge herself, but she never thought that the danger was approaching her step by step...