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.

The story of a pop idol and her dear friend (who doesn’t care much about other girls) and always pays attention to the idol – who in turn, is harassed by her manager. One day they are about to have sex in the dressing room when the manager finds out via CCTV. He gets in the room to stop them and takes advantage of the situation.

Hikari is an ordinary school student. One day she meets Buccha the talking cat, who says that she’s Venus Pink, warrior of the goddess Aphrodite. Along with four other girls she has to fight with perverted Necros and four lords of Inma Empire, who want to revive the god of lust, Apollo, and turn the world into a sex pit.

After searching far and wide, two old businessmen finally stumble upon the exact type of girl that they are looking for, one with enormous “udders”. With the promise of money they invite her into endless sexual escapades!

During a study session, Megumi confessed her feelings to Satoru. However, not only did she have feelings for him, but he also had feelings for her. So… the rest is history.

Ai and Mai Amatsu are twin sisters, who have been trained by their grandmother Genshu in the family’s spiritual traditions. Little do the twins know how useful being preistesses will be when vile creatures from the demon beast world appear to lead mankind astray. The lecherous monsters have an ancient vendetta against the Amatsu family for their part over the centuries in keeping the demon beast world at bay. Things become complicated when Genshu decides to fulfill the family’s customary duty early as the guardians of the god Tenjin’s descendant, who turns out to be a perverted youngman himself. Caught between the depravity of the demons and their young charge, will Ai and Mai be able to fend them all off?

The written word is a powerful tool… something Mikimoto knows all too well. Talented and devious, Mikimoto has everything it takes to make a top-rated journalist, but what would a journalist be without a good scandal to write about? Developing his own personal underground newspaper, Mikimoto carefully plants the seeds of anger and wanton lust within his male classmates – all aimed towards just one person: the voluptuous Nanase. When his classmates finally go after her to punish her for all of her “sins,” Mikimoto silently records every depraved moment.
As notoriety of the newspaper spreads, more and more girls are falling prey to the perverse desires of those influenced by it. Even Mikimoto is finding it harder and harder to resist his own dark desires towards one specific full-bosomed beauty, Madoka. Will this master manipulator ultimately fall prey to his own writing talents?

Sex with your childhood Final Fantasy girl.. check.
Dodge lawsuit from Square by changing a character in her name.. check, and check.
“Yufin” the self-proclaimed treasure hunter in 3.5 erotic episodes.