After Chinese teacher Chen Mengyun (played by Xu Weining) entered Nanyi High School to teach, she was targeted by the trouble-making school bully Zhang Yixiang (played by Chen Haosen) and frequently made things difficult for her. Although the academic director Li Dawei (played by Xue Shiling) constantly lent a hand to Mengyun, Zhang Yixiang's mother Xie Shufen (played by Yin Xin), who was the president of the parent association, controlled everything in the school. Mengyun and Yixiang developed a fast and exciting development from the initial disagreement to the emergence of ambiguous feelings. This campus taboo romantic love story will set off discussions throughout the campus and society.