Main female protagonist in High School DxD. Previously known as "Toujou Shirone".
She has yellow eyes, small breasts, and short white hair stylized with bangs, sidelocks, and hair between eyes. In her catgirl form, she has cat ears with animal ear fluff and a white cat tail. She usually wears a cat hair ornament and the Kuoh Academy School Uniform.
Voiced by Taketatsu Ayana in the anime.