Two respected older brothers. Two beautiful, virtuous wives. The younger brother, a horndog who salivates at the chance to taste those wives.

Having suffered an injury during a soccer game, Ryoushirou Hayasaki returns to his parents' house to undergo therapy. As both of them are currently abroad, the only ones to welcome him home are his four older sisters—Yurine, Noemi, Naru, and Mio. His laid-back recovery is soon interrupted when Noemi finds her brother's erotic comics and love letters from younger classmates. The sisters soon realize that Ryoushirou has a little sister complex and the family argument that follows leaves the siblings at odds. Depressed and fed-up, Ryoushirou considers leaving the house. However, he gets an unexpected visit by Yurine that night—a short-haired and well-endowed beauty who is willing to help him with his rehabilitation and make up for the other sisters' outburst. Unable to deny himself the guilty pleasure, Ryoushirou decides to make the most of his stay and take advantage of the wonders around him.

Keisuke Takatou wakes up in a featureless white room, unaware of how and when he arrived. While exploring his whereabouts, he notices six familiar girls huddled around a large monitor—his childhood friend Kanae Hokari, the class president Miyakou Ando, his English teacher Natsuki Aoi, his junior Rika Makiba, and his classmates Rinne Byakuya and Nemu Manaka. As they attempt to make sense of their current situation, a voice suddenly declares through the monitor, "The game will now begin." The rules of the game are simple yet brutal; assigned as the "unlocker," Keisuke must select one of the girls as his "keyhole" and violate her in a specific manner. Only after he does this for five rounds will the group be promised freedom to the outside world. "Withdrawal from the game will result in death," announces the mysterious voice...

Welcome To The Courtesans Palace Of Mystics. You can have a variety of nonhuman prostitutes here. Tonight, please have fun with amorousness of bewitching, beautiful, pretty and very sexy prostitutes.

The bastard son of a rich aristocrat is hellbent on seeking revenge ever since his father abandoned him and his mother. He decides to teach his father a lesson by destroying what he treasures the most, his two daughters. He infiltrates their prestigious school with a magical time-freezing device he received from a witch — and proceeds to repeatedly rape his half-sisters, leaving them confused, helpless, and begging for mercy.

Yuuto is living alone in an apartment complex but thanks to his neighbours Megumi, Anna and Mako he's not feeling lonely. Though he enjoys their company (and their looks) he is a bit disappointed that they always treat him as a child, not as a man Things change on the night of his birthday when, after the party the three throw for him, Megumi tells him that as a birthday present she'll do something for him. It's the beginning of Yuuto's hot summer vacation with the three busty women...

Saiki Yasuo is a 45-year-old office worker. After 20 years of marriage, his wife asked for a divorce and left him. Now, depressed, he spends the nights drinking alone, until one night a girl from the St. Marian Academy approaches him looking for a client

After an anti-human organization threatens all of humanity, the only ones up to the task of stopping them are two sexy heroines who use the powers of friendship, trust, and peace to overpower their opponents... by forcing them to ejaculate constantly and use up all their energy. Doesn't seem like a great plan afterall...