You play as a problem student at a training facility for demon slayers coming upon the demon slayer graduation exam without having unlocked any special powers.
During the exam, a powerful monster appears, disrupting the exam, and causing a cool and beautiful demon slayer named Itsuki to be called in to exterminate it.
Upon viewing that erotic flesh, your power is unlocked: the ability to fulfill any ero desire.
Using this power, you conquer the older demon slayer woman, and turn her into your own personal ona-hole slut.
The protagonist, Noriyuki, lost his young wife to an illness a few years ago. In the midst of despair, he met Haruka who then supported him.
Afterwards, Haruka's existence meant a lot more for Noriyuki, which led him to opening up about his late wife and proposing for marriage, to which Haruka accepted.
Their happy married life started, with Noriyuki working at a company and Haruka working at the university she graduated from.
One day, the younger brother of Noriyuki's late wife, Rikurou, who he hasn't been at contact with for a long time, appeared before him with a DVD. Inside the DVD is a video of Haruka being fucked by Rikurou, with her defloration scene on tape as well. When he asked Haruka about it, she said it was a folly of her youth.
However, Noriyuki saw it as a mere thing of the past and not something they should worry about, and that even he himself had another woman in the past. Once again confirming their love for each other, the trouble was gone.
Or so he thought...
On the park one night,
I came across a battle unfolding between monsters and Magical Girls.
Those girls happened to be my students, from St. Étoile Academy.
They said,
"This world is being invaded by beings from another world, and so we're fighting to protect it"
An absurd explanation, yet it was proven true by the conflict taking place in front of me.
I thought about what I could do for my students, and so I decided to stay together with them, however...
The protagonist, Ayano Taiki is a physics teacher at a high school. In school, he also acts as an advisor for the Astronomy Club which is a club consisting of only two members, sisters Aimi and Yumeno. He is living a peaceful and fulfilling life.
One day in July, Taiki is invited by the sisters to come with them to have a "training camp" in their home village they are returning to for summer vacations. Since he has no parents or relatives and as such, nothing to do, he gladly takes the sisters' invitation
When summer vacations start, he arrives at the countryside where the sisters wait, there he meets their cousins Saki and Chieri and receives a warm welcome.
This will be a great vacation, is what Taiki thought... But what awaited him, were quickly-passing days full of obscenity.
Impregnate heroes and demons to create the ultimate army and push your desires
to their absolute limit!
Summoned to another world by a powerful demon, a man finds himself at odds with
retired hero of legend Lucia and the current hero, her daughter Sara. But with none of the
expected parallel world advantages, he goes down in one hit and is left by the wayside.
Defeat here would be a death sentence, so he concocts a plan -- take Lucia hostage and
teach her a thing or two with his dick! Now she's loyal only to him, and he impregnates her
as part of phase 2 of his plan to create a dark harem army and walk the path of depravity!
The former hero, Lucia...
her daughter and current hero, Sara...
And the cold, capable demon lord, Karla...
They're all as strong as they are beautiful... but they're no match for your dick!
With your powers of penile persuasion, no one can stop your plan to rule the world!
In the past, this island was a fertile and peaceful kingdom ruled by a royal family. The coat of arms was carved in the likeness of dragons and angels, the protectors of the kingdom. The kingdom's history was said to span several thousand years, the faith of the denizens in the reigning king and queen strong and the entire island enjoyed the embrace of peace.
However over a decade ago, demons suddenly appeared and attacked the kingdom. The Knightly chapters were annihilated by the demons' powerful magic. The King and Queen were killed and the capital was felled by flames in just one night. The archdemon who attacked the kingdom styled herself the "Progenitor Demon".
The archdemon proclaimed the island would be ruled by her loyal subordinates, the five "Witches".
Now, the island is under the witches' control. The five witches are beings possessing great power, the island's denizens are cowed by the witches' intimidating powers. The witches have ruled for over a decade, but none of them age nor weaken. If anything their powers continue to grow. People think that making a contract with the Witches and the demons would allow one to gain eternal life and magic powers. Those who opposed these beings who were effectively demons found their numbers dwindling, until the island's denizens resigned themselves to the witches' cruel reign.
Gilbert, a man who hunts demons for a living yet has command over demonic powers, ventures forth onto Regulus island to hunt the demons who have possessed the Five Witches as well as the Archdemon who dominates them.
What fate awaits him...
During an enrollment exam at Sword Arts Academy, Shimojou Kazuma's special ability suddenly activated towards one of the female examiners, leaving her stark naked.
Kazuma, who developed special abilities that could only be used by women, was instead forced to enroll at [Toaru Girls Academy], a place where the huge breasted elite of society attended. At Toaru, the level of a students' skills is determined by their bust size, those skills are also called [Paikokinesis].
On the other side, during that time, he had a fight with his sister which ended up with his smartphone breaking.
In order to repair it, he went to a cellphone shop that caught his attention a day before. Instead of repairing his smartphone, he ended up getting a strange new one. Upon trying it out, an app immediately caught his attention.
Tapping the app's start icon, a blinding light spread in front of him. When the light faded, there was a dreamlike scene before him: a plethora of girls -- including his childhood friend Rio -- were bathing in Toaru Academy's public bath.
Now, as if it was his destiny, with this otherworldly Super Erotic Smartphone and its Super Erotic Apps, Kazuma's life at Toaru Academy begins as he aims to conquer all of its students.
“Onii-chan. Please leave me here in this home…”
Shingo left his hometown in the countryside to live alone in the city. Then during the winter break, his imouto Yuki, whom he thought he had left behind, traveled all the way from afar to live with him. His cousin Sae who visits him often for private lessons sensed the arrival of another girl.
What was Yuki’s reason for coming? What actions will Sae take?
Before he knew it, he laid his hands on their bodies….
