Ryuki Kirishima is a boy who lives with his older sister, Reiko, after the tragic death of their parents in a car accident. One summer day, Ryuki and his friends gather to watch adult videos for fun. Although Ryuki doesn’t usually enjoy this type of content, he feels inexplicably attracted to videos featuring Kiriru, a new and popular porn actress. As he watches, Ryuki feels a strong attraction to Kiriru, and to his surprise, she appears before him in person for sex.

Japan was engulfed in a demographic crisis, forcing the government to implement the "Ikumonogakari" law, which permitted promiscuous sexual interactions among the people. They started doing practical and pedagogical activities on the lessons of sexual life and a partner's sexual fulfillment. The protagonists are young and inexperienced, so practical exercises will help them to improve their skills.

The Amami family, Hassaku, his older sister Mao and younger sister Airi. Their parents founded a school to foster love between the students but they passed away in an accident. Now their aunt Mei has taken possession of the school and forced Mao away so nobody could challenger her position. Mei's plan is to turn the school into a Mecha-con school where girls are trained to be sold as the perfect brides for wealthy men. To do that she needs to convert the school into an all girl's school.

A former science teacher receives a mysterious recruitment document, inviting him to a prestigious school. However, this school is not what it seems...

High school student Yui Tachibana loses a game she played with her friends. Now she is to receive a penalty. However, in order to carry out this punishment, the girls need a certain “thing”: their classmate Shougo Kageura, a weird otaku boy. Yui is supposed to take Shougo‘s virginity as punishment. What’s more, in front of all her friends! They climax rather quickly, though Yui can’t get Shougo out of her mind – especially his beautiful, perfect-sized cock. Soon, this “one-time punishment” turns into more…

Poison and malice in the name of sex. The petty villains lurking in the school and the student council that rules the scene. The resistance forces wage an information war against them. In this world, everyone has a hidden side.

Our protagonist, Majime Masato, is an extremely average and extremely lewd second year student at Ichisakura Academy. His reputation as a pervert precedes him. One day, he saves a black cat named Shami who gives him a magical "smartphone of love" as a gift. He levels up from being a lowly perverted student to being the most perverted student in the whole world! Ichisakura Academy ranks in the top three in the nation for average female bust size, so Majime has quite a selection to choose from!

Mine is forcibly taken to work in her parents' fields by Ayano, a veteran member of her club. However, by spraying water, Ayano's clothes are splashed with water, and under the transparent clothes, there is a cute nipple... A small accident leads the two to vent their feelings towards each other. Under the blue sky, their lips touch, fueled by uncontrollable love and lust. Yuzu, a beautiful young woman with long black hair, is the object of male admiration. But when she is alone, she takes a selfie masturbating and enjoys it.Today, when she is secretly taking masturbation photos in the club room, she is finally discovered by her superior, Matsuyama.Yuzu is anguished with shame, but after revealing her true nature, her sexual appetite increases to the point where she seduces Matsuyama and devours his cock. Yuzu's face turns from innocent beauty to lonely bitch as she begs to be penetrated, unable to hold her aching pussy.