Her online boyfriend, Jiang Ren, cruelly dumps Xia Zhizhi over a Lolita fashion photo and even offers her to his handsome roommate, Gu Si, to make up for his own shortcomings. Xia Zhizhi accidentally discovers that the stunning girl in the photo that captivated him is actually herself in a cosplay convention outfit. Jiang Ren doesn't even recognize his own ex-girlfriend! The aloof Gu Si already knows her from the past. Three years ago, she pranked him in an online game, and now he deliberately approaches her to demand compensation for his emotional distress. When Jiang Ren finally discovers the truth and desperately begs her to get back together, Xia Zhizhi has already chosen Gu Si, who has waited years for her. She puts the past behind her and begins a brand-new romance.