Hime Dorei
Japanese title: 姫奴隷
Type: OVA
Episodes: 2
Source: Visual novel
Genres: Hentai
Studios: Gunners
Producers: Milky Animation Label, MS Pictures
Duration: 28 min per ep
Rating: Rx - Hentai

Princess Tita is the successor to the throne of the Luvence Kingdom. Tita's sister Liese hired Waldo, a practitioner of black magic to make sure that Tita doesn't rise to power. Waldo has but one condition upon accepting the request: the method is up to his choosing.

(Source: TMDB)