When a handsome math genius has personalities as different as day and night, is there more than meets the eye? Xiao En (Dylan Xiong) is a handsome math genius with a high IQ. Lin Yuan (Wendy Zhang) is a bubbly girl who can't get over a heartbreak. When Lin Yuan meets Xiao En she can't resist his charm and intelligence. But as she is drawn him more and more, she can't help but notice his day and night personalities. Could Xiao En be the one who mends her broken heart or is he harboring a much larger secret? "One and Another Him" is a 2018 Chinese School Romance.