Kouga-san no HamiguseKouga-san no Kamiguse; コウガさんの噛みぐせ; Kouga-san no Kami Guse; Kouga-san's Biting Habit; Укус Коуги

Kouga is a flawless high school girl. She is sweet, gentle, and beautiful. Mochida, her classmate, likens her to a Disney princess. The only oddity she displays is that she rarely takes off her mask. However, one day, Mochida sees her without it, and discovers that the Disney princess actually has a secret