Introduction: As the fugitive girlfriend of a school hunk, Chen Miren has spent three difficult years in high school, transferring to another school overnight in order to escape the heavy psychological burden of this "stolen love". And aspiring to become a hand puppet designer, she enrolled in the Department of Design, thinking that the university would usher in a new beginning, however, she was transferred to change her major accidentally. What's more unlucky is that Chen Miren will be in the same class for four years with her first boyfriend, Zhong Wei, who she had mercilessly abandoned and dumped without a reason in the first place. Zhong Wei is in hot pursuit of his love, but Chen Miren dares not admit that everything started just because Zhong Wei recognized the wrong person, so she can only escape in a mess. Who would have guessed that after all this time, the two are still each other's favorite type, so they fall in love again to be the sweet couple, until the "real crush" suddenly appeared, everything turned upside down.