There is a strange epidemic running rampant at the local inpatient hospital. For some reason every night the nurses are feeling an uncontrollable urge. They have no choice but to satisfy it with the patients, the doctors, and even each other. The new resident doctor has his own itch to scratch, as well as a suspicion that someone is behind this impromptu sex ring.

Based on the erotic game by Hibiki Works.

Kenta Suzumura is an unemployed man who has never managed to maintain a job or a loving relationship. On the other hand, his brother Kouta is handsome, intelligent, and married to a beautiful Russian woman named Arisa. However, when Kouta announces that he will be away on a business trip, Kenta decides to seize the opportunity and “educate” Arisa about Japan in the absence of her husband—of course, in the most obscene ways possible…

The prestigious Saint Arcadia School has recently started admitting male students, and Takuro Hayami is among those joining. Elated at the prospect of sharing the dormitory with charming and well-endowed classmates, he fails to realize that the girls at the academy are sex-hungry deviants.

A regular student at first glance, Takuro instantly becomes the target of aggressive courting. When Yuuki Miyagishi, one of his roommates, manages to seduce him, she discovers his special ability: outstanding sexual prowess! Hayami’s “Ultimate Sex Power” soon becomes known across campus, and what started as playful kinkiness turns into a fierce competition as every student club strives to persuade Takuro into joining their ranks. Hidden beneath Saint Arcadia’s sugar-coated reputation lurks a desperate sexual power struggle—and the arrival of the new transfer student might just be the tipping point.

I definitely don’t need it, but wouldn’t it be nice to do it again like last time… The two whispering are twin sisters Mitsuki and Kasumi. In the living room, Moe Mama Chihiro is having a meeting with her private tutor, Koudai . She was the twin sister of Kasumi, the elder sister, and Mitsuki, the silly younger sister with a bright brain . And this time, too, they put their heart and soul into getting rid of the beautiful twin girls… If you don’t want to be wrapped up in pieces, you should quickly decline, right ? ! Koudai was caught in a beautiful girl’s trap and was on the verge of being fired . Koudai decides to use all possible means to corrupt the two, betting on his pride that he has built up a track record by always defeating them…

When a school girl takes shelter from the rain at a bus stop, a middle-aged man comes…
After some time of chatting the man, frustrated about the way his family is treating him, suddenly assaults and r*pes her over and over again.

Katsuma is just a go-boy of his female bosses… Whenever he has a battle against Silverstar, a hero, he loses…

One day, when he has another battle against Silverstar, his bosses suddenly trap Katsuma and Silverstar. When he regains his consciousness, he finds himself being taken care of by Maria, another Silverstar. Katsuma is attacted to her kindness…, no, he just sleeps with her… However, he acquires a special power by sleeping with her…!

He soon decides to take revenge on his bosses…

One day, the most popular teacher at Akakura Gakuen, Aoi-sensei, approached Wataru and informed him that his help is needed and he must take off his clothes immediately. She was an agent of the secret international defence organization Cradle and asked him to aid in the battle against the enemy “4D”. In order to defeat “4D”, he must engage in ecchi activities to gain energy and defeat the enemy with the power of love! His imouto-like osananajimi Honoka, classmate Ermalit, expressionless Mirai from the future and chibi Chitose from the past lend their help. However, they aren’t sure what to do!? And so marked the end of his peaceful single life.