Based on a game by Tanuki Soft.
Kazuma returns home after a long absence and becomes a part-time home tutor to his younger sister and a few other girls.

Two sisters attend the same college, one as a teacher and one as a student. Both of them, however, date college boys the same age. The younger sister has a big problem, because her boyfriend never seems ready to satisfy her. Her older sister’s trouble is just the opposite!

You woke up to find yourself lying on the bed of the nurse room.
Then you saw a sexy feminine doctor; she was looking you down with her beautiful eyes.
She started examining you to give you a “special” treatment you hoped for…

Maya: unspeakably beautiful, her body drives men insane with desire. To touch her sensuous curves is to experience true ecstasy…
Taking a job as a maid at a wealthy man’s estate, Maya expected to be cleaning priceless collections; she never expected to become part of one! Now she’s part of a world where the ultra-wealthy throw secret, extravagant masquerade parties so they can indulge in every manner of pleasure imaginable. Parties where voyeurs can watch as private “collections” of beautiful women face off in contests using every possible form of sex and S&M. How will Maya fare as its newest participant?

Based on the game by Guilty+.
A sexually unsatisfied mother seeks the thrills of sex with her son while he is asleep; or at least that is what she thinks. This however triggers her son to eventually rape his mother and blackmail his step-sister into having sex with him.

Our protagonist, wishing to return to the old days, goes back in time to get revenge on the girls who bullied him as a kid.
His big sister Saki… and his classmates are definite candidates….
But how about his childhood friend, Sera…?

A second year high school student and a Kendo club member, Tamao Tsukamu, admires his senpai, the club captain, Kiritani Konome.
One fateful day, she asks him for a favor involving making special kinds of photos for the student graduation album.

Based on the erotic manga by Otono Natsu.