An adaptation of a sidequest from Makai Kishi Ingrid, where Ingrid was enslaved by slave trader and brothel keeper Knight (Sobato) and began serving his many esteemed customers with a smile on her face. Her memory is overwritten and she has no right to disobey her master. Ingid falls lower and lower, and her morals crumble under the onslaught of horny customers, because she was once a knight - the defender of justice.