After nineteen-year-old Lu Chaosheng broke up with his girlfriend, in order to forget these memories, he went to school as an internship physics teacher to enrich himself. Unexpectedly, he met a fourteen-year-old rebellious girl Wen Lan on campus. Wen Lan provokes Lu Chaosheng everywhere, but unintentionally attracts him. After a summer, they began a long teacher-student relationship...