Xiao Nai (Jing Boran) is a gaming expert who is also the most popular student on campus. One day, he comes across the campus goddess Bei Wei Wei (Angelababy) and it was love at first sight. However, it was not Wei Wei's looks that he noticed, but her skills mastery of the online RPG game. Now, Xiao Nai must use his skills both in real life and online to capture Wei Wei's heart. But does their love have the EXP to succeed, or will this relationship never level up? Also known as “Wei Wei’s Beautiful Smile” and “Just One Smile is Very Alluring,” Love O2O is based on the novel Wei Wei Yi Xiao Hen Qing Cheng by Gu Man.