Anime adaptation of the PC game by Blue Gale LIGHT.
Deep in a forest, there existed an old European-style building made of brick. It was an all-girls’ school attended only by girls from good families.
One day the school was covered by a mysterious thick fog caused by an earthquake. Orc soldiers emerged from the ominous fog.
The schoolgirls were attacked one after another by these brutes from a parallel world. The girls’ resistance was futile; they were crushed by the powerful orcs. Rape and death, only tragic screams echoed through the school.
Why did it become like that!? There was no one who could answer that question…
(Source: VNDB)

Based on the erotic game by Tinker Bell.

On the mysterious continent of Laan, where dragons are as common as pleasure slaves, the evil and sadistic King Maryu plans his invasion and conquest of the Asronia Kingdom. At the center of his demented plan, to kidnap the young and beautiful Princess Yurie of Asronia, and break her spirit whle he turns her into his personal sex toy. With his very special training assistant, he intends to make Yurie his number one pleasure slave who will obey his every command.
Watch as Yurie endures the most humiliating training, the most degenerate sexual rituals, and the most erotic forms of torture!

After Minakami Iori fell in love with Kiriya Kento at a young age, she wanted to be his wife more than anything, and Kento felt the same way about Iori. When Kento is nearly killed by a monster, she is told the only way to save him is to have sex with other men to make her more powerful as a magical girl.

Three mystical artifacts called the Jingi have been stolen and without them, no clear order of succession exists in the Empire of Yamato. Now both the northern and southern kingdoms are searching for them, in order to rule over the other.
Enter Yahiro, a ninja who is searching the Jingi to sell them for a quick buck. On his journey he will have to deal with a female assassin out for his head, a princess doing nightly visitations, a virgin shrine maiden, and many more.

“I’m a super cute girl who’s going to suck out all your semen

Otoko no Ko Ojou-sama! tells the story of a servant boy named Hikaru and his mistress Ayana.
Ayana’s favorite hobby is dressing the cute and girlish Hikaru in female clothes and video taping him as they engage in acts of pleasure.

Based on the erotic game Fukubiki! Triangle by Blue Gale.
Sequel to Fukubiki! Triangle: Miharu After, Ushio’s love affair with Miharu’s sister Futaba isn’t as hot and active as Futaba would like. She takes matters into her own hands, attempting to seduce him, tying him up, drugging him… But in trying to make him more assertive, is Futaba going to get in over her head?