The film opens as Yuan Xiangqin is riding her bike to her new school for the first time. She walks past Jiang Zhishu and trips on the stairs, taking along Zhishu's phone. As Jiang Zhishu tries to figure how to save Yuan Xiangqin and his phone from breaking, Xiangqin reluctantly grabs on to his tie and their lips meet, signalling their first meeting. She then meets Jiang Zhishu again at a school assembly as he talks about his ongoing project in Boston, and finds out he's an extraordinarily smart person with a 200IQ score in the A class.