Leng Ruolin is Zhang Jiunan's cousin's best friend and serves as her tutor and school chemistry teacher. When Zhang Jiunan met her, he thought he would be a gentle teacher, but unexpectedly he turned into a bad teacher who loved to bully her! The initial encounter was accidental but not accidental, and the development of the story was inevitable but not inevitable. The family's opposition and the changes in the situation have prevented the two from being honest with each other.
Zhang Jiunan only knew that teachers and students of the same sex were not allowed to fall in love with each other. When Leng Ruolin finally put down everything to look for her. But he discovered that his real love rival was actually himself.