Kae Serinuma is the main character from the Japanese manga and anime series titled "Kiss Him, Not Me." She is a high school girl who is an avid fan of otaku culture, particularly yaoi (boys' love) stories. Kae is initially portrayed as overweight and socially awkward, but after losing weight, she becomes more attractive, attracting the attention of several boys at her school. Despite her newfound popularity, Kae remains more interested in her anime and manga than in romantic relationships. The series explores themes of self-acceptance, friendship, and the challenges of balancing personal interests with social expectations.