This is the legendary Go Nagai's breakthrough work. Harenchi Gakuen is an elementary school whose teachers and students are all perverts. Boys peep girls changing. Girls pull up their skirts and show off their panties. Actually, it's not as evil as you imagine. They're like cubs playing together. It's only pre-school eroticism, nothing sexual. In spite of that, Harenchi Gakuen became a sensation. Parents, teachers, and politicians hysterically attacked the comic's immorality.

While all of his classmate were transported to another world as heroes, for some reason he was left out as the dungeon master... and he, Satoshi Shinta, became the world's enemy. As the enemy of humankind, in order to survive and live a pleasant life in another world, he had a big choice to makeー. Through devilish methods, make his enemies fall, and strengthen his dungeon!!
To violate his enemies or kill them, the curtain raises on (male) Satoshi Shinta's devilish dungeon management!!

XX years have passed since the enforcement of "The Human Rights Proper Use Act." In the city, "humans with rights" live prosperously, while "humans designated as livestock without rights" are displayed in shop windows. The humans used as pets, experimental animals, and meat are pitiful creatures living in a world separate from mine... or so it was supposed to be.

The manga continues with the story of Alicia from "A Female Warrior Who Fell to the Goblin Kingdom"...

Five students, 3 women and 2 men, wash ashore a remote island, survivors of ship sinking.

Finding themselves in this extreme situation, their instinct and conscience intersect and collide!
Crossing thoughts, feelings of love and hate mixed with trust and betrayal. A story of uncontrollable libido and murderous intent…

Original R18 web novel: https://novel18.syosetu.com/n1896br/

This is a story of 6 school friends, adults now, who during their school-days were persistently bullying one of their classmates. Suddenly though their quiet lives will be shaken violently when things they wanted to keep secret are coming out to haunt them! Is this the revenge of the bullied classmate and how far will he go?

The Yoshinomiya Municipal High School 2nd year students embarked on what they'd hoped was an educational trip with their friends and away from family but it was not meant to be... Their ship was hit by unexpected rough seas and crashed on a strange island! The surviving students are trying to understand what happened but soon they realize they are not alone on this island and the locals don't appear to be very friendly to strangers!!!

Tanaka was a salaryman who lived an average life. That life came to an end when he was 41 years old…or it was supposed to. But when he came to his senses, he was standing in a world that resembled ‘Medieval Europe’. There was no heating system, and food was eaten with your hands. On top of all that, pigs ran wild in the city…and what did the pigs eat? Shit. And in this harsh world, Tanaka would live his second life as ‘Varian De Lioncoeur’. Will this average salaryman be able to survive?

Links:
Web Novel: https://ncode.syosetu.com/n4662ec/ (Japanese)

A dark, tragic twist on the loli theme.

It finally happened, Shirakawa Mikoto was confessed to for the first time in her life! Otsuki Makoto wasn’t exactly her ideal man but, she wanted to have a boyfriend to show off to her friends. It turns out dating someone you don’t even know can be complicated, especially if they are a bit strange.
This is a raunchy, heart pounding love story. Expect goosebumps and some doki doki action on the side.

A gun otaku dies after toying with a homemade pistol that explodes in his face. In the afterlife, he is told that he will be reincarnated into another world. When the otaku wakes up, he finds that he is no longer human - he’s now just some little furry thing. Near death, he comes across a beautiful warrior, who decides to take care of him because he’s fluffy. However, things take a turn when he finds out that firearms exist in this world?

From the writer of Time Stop Brave and Princess Resurrection comes a new isekai story, which has bears, boobs, and bullets.

The world is filled with cruel scum, ranging from petty thieves to sociopath maniacs. When a vile low-life inflicts pain and suffering on innocent victims, sometimes their anger becomes overwhelming. Whether their damage stems from romance, finance, reputation or even a death, these victims feel trapped in their own skins and lives.

Those victims who can't stand it anymore call for the mysterious woman, owner of Uramiya, the "Revenge Shop".

The Uramiya specializes in executing revenge schemes. The vengeance their customers request on their bitterly resented enemies could range from financially destroying them, to smearing their social reputation, to even taking their lives. As long as you pay a fair price, the Uramiya will guarantee you get the revenge you deserve.

Death row prisoner. Criminals who committed violent crimes and were sentenced to death by law. Akari, a woman who had no meaning in the prison island “Deep Palace” near death, accommodating them, acted with a certain purpose. Just when she thought she was able to complete my purpose safely, the death row prisoners have started to kill each other? A battle royal “Killing” was held where men and women were separated and the remaining team could escape!! Can Akari survive the “Killing” safely and escape from prison? Blood, Eros, and dangerous guys fly around, all the characters, a Battle Royale of all scum prisoners!!!!!

Bash, the Orc Warrior, is a Hero.
During the war, he crushed and defeated all that stood in his path. He is respected by all Orcs as the Orc among Orcs.
However, Bash has a secret.
He has no experience with women – he, the Hero, was a virgin.
For Orcs, who hold combat and sexual prowess in high regard, being a virgin is tremendously shameful.

[The fact that I’m a not only a virgin, but a virgin Orc Hero, is a shame for all of Orcish society. I want a wife too!] With this in mind, he decides to embark on a journey.
In order to protect the pride and honor of his race, but mostly to finally get his d*ck wet, he decides to go to leave on a grand quest to find himself a woman.

From the author of the popular LN series "Mushoku Tensei", comes with another masterpiece!

A world where the Demon King was defeated by a Hero that came from another world. People carelessly forgot about their fear of the Demon King and of monsters, living in peace.

In a forgotten and run-down cave in the mountains, a new monster that should not have been born was given birth.

The monster’s name was the “Black Ooze”. It was nothing exceptional other than its black color, an ordinary slime.

However, this slime had the special characteristic of being able to take the abilities of the living things it swallowed. It preyed on an insect that had paralytic poison, as well as other animals. Following that, it attacked a human, obtaining his knowledge and Desire.

Before long, the monster established its target as the female mage that came to explore the cave.

This world still wasn’t aware.

A Monster Was Born…

The revered Swordmaster Hoss sets out to defeat the formidable Shell Dragon! But when people find his cold dead body amidst the remains of a fierce battle, they make a shocking new discovery. Now, with monster hunters discovering new ways to utilize their spoils for more private (?) pleasures, a bizarre sexual hype sweeps through the lands - and Cheong, as innocent as she is, must make her way through this mess. Join Cheong as she embarks on her raunchy new adventure!

The overly serious Shimizu Azusa who is part of the public morals committee of her school suddenly inherits her father's store after his death. To her surprise it is not a simple bookstore but a sex store..! How will this highly disciplined but totally inexperienced girl manage to keep the business going?

Violence, abduction, extortion, drugs, blackmail… This gang will do literally anything for money.
One day, they kidnap a young girl, physically and mentally destroying her in the process. Seeing what was done to his beloved daughter, the girl’s father loses his sanity, his anger turning into an obsession to find and torture every member of the gang, to ensure they die in the worst imaginable ways. Fires of revenge rage in his heart, and keep escalating. How will this tale of revenge end?

The main character and “anti-hero”, The Rapeman, is a high school teacher by day and dispenses his surreal brand of “justice” at night under the business “Rapeman Services”, which is co-run with his uncle, a former surgeon. He uses rape as his weapon. The business' motto is “Righting wrongs through penetration”.

Clients call on The Rapeman to handle cases such as the revenge of a jilted lover, forming parental bonds through a traumatic crisis, making disruptive co-workers more docile and other things of that nature. When engaged in his night trade, The Rapeman wears a black leather ski mask shaped like the head of a penis but no trousers or underwear. In the middle of a rape, if the woman became unresponsive or appeared to be enjoying the violation, he would use a “special technique” such as “M69 Screwdriver” or “Infinite Loop” to apply more pain to the victim. He sometimes has regrets for the contracts he fulfills, but he always does the job.

*record scratch* *freeze-frame on Haru Koyama getting choked by a horny naked dude* Yep, that’s me. You’re probably wondering how I got into this situation. Not by choice, I can tell you that! It started when my weirdo classmate, Chiba, tried to save me from a runaway truck and got us both killed instead. Idiot. Then we got transported to another world, which I guess is like an otaku dream come true, or something? Chiba ends up with cheat abilities, and what do I get? Nothing! Lucky me, I get to be a sex worker instead. Gotta earn money somehow — but since I have to do it, I’m gonna kick ass at it. This world treats women even worse than the one we came from, so things get…rough. Still, I’ve made friends with some girls, and if I can juggle Chiba’s idiocy and Sumo the virgin’s emotions on top of all the various kinks my customers throw at me, things will be all right…won’t they?