Watched DxD New Born only. No Hero nor the manga or novel.

I know Gasper is a boy, i would anyway. I realized this female characters are missing in the tier list. Katase (B) Murayama (B) Touen Momo (C) Karlamine (C) Katerea Leviathan (C) Isabella (D). Don't know any others, only know this because i checked a mobage site.