Kae Serinuma is the main character in the anime and manga series Kiss Him, Not Me. She is a high school girl who is an avid fan of otaku culture, particularly yaoi and anime. After losing weight, she becomes attractive to several boys, which complicates her life as she navigates her feelings and friendships. Throughout the series, Kae finds herself the object of affection for multiple suitors, including Mutsumi, Nanashiro, and Shinomiya. Despite their interest, Kae struggles with her own feelings and often prioritizes her friends over romantic pursuits, leading to humorous and heartfelt situations.