On a late evening, student Kurumi Imari is leaving her Academy classroom. As she makes her way down the hallway wearing her backpack, a male student is secretly stalking her every move. He suddenly lunches forwards and grabs the girl by her breasts. She screams and tries to push him away, but he covers her mouth and holds down her arm behind her back. Her fellow student drags her into a storage room and takes out his penis. Shocked, Imari tries to run, but he painfully grabs her by her hair and forces her to give him oral sex. Afterwards, Imari quickly tries to make a run for the door again without success. The boy again quickly grabs her by her breasts and starts groping them. He proceeds to strip off her clothes and rapes her. After the boy licks her feet and continues having sex with her, Imari stops resisting and gives in to her arousal. She starts riding her attacker willingly, and even affectionately licks him back. Finally, the boy ejaculates over Imari’s half naked body. He grabs her striped panties and puts them in his pocket before walking out and closing the door, leaving behind a panting and soiled Imari.

They wake up in a white room remembering nothing The protagonist Takato Keisuke and 6 others are locked up in these hidden white rooms. His childhood friend Hokari Kanae, classmate Ando Miyako, underclassmate Mikaba Rika, English teacher Aoi Natsuki, same year Byakuya Rinne, and classmate Manaka Nemu. While still confused about their unusual situation, a “mystery voice” suddenly speaks to them: “A game has now started. In order to escape the room, Keisuke is the “unlocker” and one heroine the “keyhole”. With an assigned act, he must “use the key”.

Daisuke Ichijou goes on vacation to his grandmother’s beach resort. As he arrives, he admires the beautiful beach and even more beautiful ladies on it. Soon, he decides to start having fun “his own way.” He encounters many girls who will make this vacation unforgettable, including his old friends, the playful Nao Ihara and the wealthy Mitsugu Tsukushino, who proceed to compete over him. Daisuke also meets his cousin Maya Koromogae and her clumsy friend, Momona Amamiya. There are Kanae Shinjou and Mika as well, who also happen to “get involved” with Daisuke throughout his vacation. These six girls will be responsible for making Daisuke’s vacation intense, fun, and unforgettable. As they put Daisuke in many complicated situations, he finds that they often lead to passionate erotic activities.

The long-running war between superpowers ended with the victory of the Dominus Empire. The princess Elise, who led to the destruction of the Kingdom of Elstein, was called the worst lewd woman, as her moans echoed throughout Elstein.

The sex slave Elise existed as a symbol of the Probasanda of the Dominus Empire, but it disappeared one day … All the men of Elstein were purged, and the women became sex slaves. A sexual law was put into place that does not allow women to refuse the advances of orcs and soldiers at any time, and if they do, they will be purged on the spot. The kingdom has entered a dark age …

Anna, a female knight, leads a resistance unit, but was captured by Baldur. But there was a secret in the eyepatch covering her right eye …

Nowa the bear lives in the forest and adopts a puppy named Airi. Before going into hibernation, Now was worried that Airi wouldn’t wean. A few months after starting his hibernation, Nowa wakes up with a pleasant sensation from Airi, now an adult dog, licking his nipple saying, “I’ve been waiting for a long time.”

Marina and Airi’s mother has left her husband, only to marry a younger man, Kouzou Akizuki. While Marina has accepted their new stepfather, Airi hates him for breaking their family. Furthermore, she soon finds out he is a sexual deviant, sniffing his underaged stepdaughters’ underwear and secretly desiring to take their virginity. Their mother is often absent from home, allowing Kouzou to pursue his carnal pleasures to his heart’s content. Unable to resist the beauty of adolescent girls’ bodies, Akizuki prepares a powerful aphrodisiac and uses it on Airi. Intoxicated with the drug, she can no longer control herself and gives in to her stepfather’s perverted demands. She soon discovers the merits of this new relationship and plunges headlong into a whirlpool of sexual degeneracy. Satisfied with the drug’s irresistible effect, Kouzou proceeds to utilize it further, coercing various girls to quench his thirst in the most embarrassing ways.

“Hey Shouta, help me set up this new club idea I’ve got… it’s called the Sexual Help Club!”

Our protagonist confessed to a girl he met at his part-time job, but the girl didn’t intend to answer his feelings and letting mc drown into sadness. After realized that he got rejected, he spends his day throwing money for alcohol. Suddenly he heard a girl voice in his dimly lighted bedroom. When he opens his eyes… a succubus was there. The succubus has been watching him every night in his dream to consume his sadness of broken heart. But the succubus realized something, consuming one’s sadness through dreams is pleasing..but “consuming” them through their reality is much more pleasurable, hence she decided to show herself up from now instead of possesing their dream.