
Quick answer — Mariko Oka worked on Nura: Rise of the Yokai Clan - Demon Capital (Character Design), Hell Girl: Two Mirrors (Character Design), The Anthem of the Heart (Prop Design) and 16 more anime.



















Mariko Oka worked on Nura: Rise of the Yokai Clan - Demon Capital (Character Design), Hell Girl: Two Mirrors (Character Design), The Anthem of the Heart (Prop Design), Nura: Rise of the Yokai Clan (Character Design), Hell Girl (Character Design), Hell Girl: Three Vessels (Character Design), Sailor Moon SuperS the Movie: Black Dream Hole (In-Between Animation), You're Being Summoned, Azazel (Key Animation) and 11 more.