Female college student Yu Xiaorou always dreams about her roommate Mile who looks neutral. Mile is a handsome and cold man in the eyes of many girls, but Yu Xiaorou sees his considerate and caring side. Gradually, Yu Xiaorou finds that she seems to have fallen in love with Mile. At the same time, Yu Xiaorou is very annoyed by the pursuit of the straight man He Yu. When Yu Xiaorou musters up the courage to reject He Yu, Mile stands beside her and gives her the strength of support with an intimate kiss. Yu Xiaorou and Mile are in love with each other, but the sweet days are always short-lived. The intimate photos of the two are posted on the school bulletin board, and a storm is brewing.