Tokyo fell into ruins following the consecutive great earthquakes of 2014. As a result, the new city center is built in the location of the former Nishitokyo. Meanwhile, Shinjuku and the submerged Minato wards devolved into slum areas. Further, due to the Immigration Laws of 2040, these slums saw an influx of refugees, mafioso, and terrorists, and is now the leading crime capital of the world.
The year is now 2049, and this is the stage in which two women embark on an operation to arrest a dangerous drug dealer.

Yu Shirakawa has been living with his grandparents, but now he is going to live with his mother after ten years of separation. Her new husband, his stepfather, has three very beautiful daughters who are now his stepsisters. These girls—Kyoko, Ryoko, and Anzu Shirakawa—are waiting for him, welcome him, and let him use the room their father uses for his archaeological finds. In the room, Yu finds a cursed jar which, unless he collects woman’s “love juice” within the period of time, will cast a terrible curse on him.

The school student council members, a nun, a warrior, and a miko are
trying to get rid of the perversion that has invaded the school, but
what they don’t know is that everyone in the school is actually happy
with that kind of life, and then they fall on the hands, or tentacles,
of the head teacher who makes them perform in front of the entire school
until they get as perverted as anyone on the school or even more.

Atsuko and Sayaka think they have it made when they are both accepted into the same prestigious women’s academy. There, they will be free to explore the intense passion of their relationship, unbounded.
But when the mystical bonds imprisoning a hideous ancient evil that feeds on the lust of nubile women are accidentally broken, the two young lovers soon learn they have more to fear than final exams.

Far away from the hustle and bustle of the city lies a small rural town in a mountainous region. A young man meets a pair of beautiful sisters there along with their mother, and lives together with them. Their days together are full of happiness, but he didn’t know that there is a hidden secret.

To say he is a terrible swimmer would be the understatement of the century, a bag of rocks could probably swim better than he does.
That definitely doesn’t stop him from trying and after a spectacular failure of a dive, he ends up needing CPR from the beautiful swimming instructor… and of course it doesn’t stop there.

Based on the game by Guilty.
Miu and her family of four women are well-known in the media for being aspiring young celebrities. Her mother, Sayoko, is a famous fashion designer and has scored a job for the family to shoot a TV production; a rare opportunity for the family to be together and enjoy themselves. The girls travel to a small, isolated village in late August and the filming begins. Little do Miu and her family know however, the entire production is a scheme. This is the time for a local festival and they happened to unwillingly volunteer to be a key figure for this festival. One by one, the girls are subjected to the traditions of the festival, experiencing first-hand just how serious it is.

She ended up being a succubus?!
What’s going to happen to me if I keep giving in to her every night…am I going to lose all thats left of myself? She keeps sucking all of the life out of me…