On her first day of transfer, Mu Youyu reunited with her childhood friend Jiang Liangjin. As she tried playing the well-behaved transfer student, he quietly played along; whenever she instinctively dodged, he stepped closer. Everyone else thought the school hunk was cold and aloof, but only she knew he had always followed right behind her since they were kids. As the past and their feelings slowly became clear, she finally realized that for this reunion, he had already waited a whole year.