14-Year-old Ouyang Mumu went to visit relatives with her grandparents and met her aunt's 20-year-old brother Chu Yan. They arranged a baby wedding. Once Ouyang Mumu was bullied by her classmates, Chu Yan got angry and beat those classmates seriously. From then on, Ouyang Mumu waited for Chu Yan for three years...
Concept: Sweet and sadistic brother-sister love