https://www.pixiv.net/en/artworks/139734953 Ciel Zebul (シエル・ゼブル) Kizetsu Yuusha to Ansatsu Hime The Shy Hero and the Assassin Princesses 気絶勇者と暗殺姫 Ciel is one of the female protagonists in Kizetsu Yuusha to Ansatsu Hime. She's the daughter of the Demon King, and seeks to assassinate the hero Toto as part of her "Ceremony of Independence". She joins the hero's team by pretending to be a newbie magician who aims to become a full-fledged magician.