Elfina: Yoru e to Urareta Oukoku de... The Animation  

Elfeana, Elfina - La princesa esclava, Elufina, Elufina - Servant Princess, Erufina - When the Kingdom Was Sold to Lewdness, Servant Princess, 에르피나

Elfina, as a member of the royal family, experienced a life of opulence with attendants at her beck and call. However, when her homeland was conquered, she became subject to the sexual demands of her conquerors. Despite how degrading or intimate these requests may be, she must comply.