Mahou Shoujo Isuka

Main Title : Mahou Shoujo Isuka
Official Title : 魔法少女イスカ
Official Title : 마법소녀 이스카
Synonym : Magical Girl Isca, Magical Girl Isuka
Type : OVA, 3 episodes
Year : 24.04.2010 till 26.08.2011
Tags : 18 restricted, dark fantasy, demon, erotic game, erotic torture, female student, game, large breasts, magical girl, nudity, rape, sex, tentacle, violence, visual novel

The evil stone conceives a part of the king of the hell’s power in a different world. To prevent his revival, the stone is implanted into a body of a magical girl.
Now the clans from the hell follow after her.
The evil stone cannot be regained by a simple destruction of the body. Thus, they start disgracing the magical girl in various ways.