Black Gate: Kanin no Gakuen · Beyond the Black Gate Episode 1 / 2
Narifumi's mundane school life is upended when Shizuku crosses a forbidden portal to seek ultimate power, dragging Narifumi and Kasumi into a perilous parallel dimension. As they battle strange creatures in this new world, Narifumi is approached by a mysterious entity who offers him the strength to rule the world in exchange for his essence, thrusting him into a confusing and erotic struggle for survival.
