One day at school, Youta Tada sees someone strange entering school. Out of nowhere this being appears next to him and makes him fall from the third floor! But before he hits the ground, he wakes up in a strange world where beings like dragons exist! Youta then meets a young paladin named Lumi and discovers that he is the only man on the entire planet, and also that its inhabitants are extremely 'weak' to his presence or more specifically, his touch. Would this be a paradise?

Kyosuke entered high school dreaming of a sparkling, youthful life. However, after reuniting with his older, introverted childhood friend, Kyoko, he is lured into joining the "Imitation Games Club."

The club's activities revolve around sophisticated versions of "make-believe" games like "House" or "Hide-and-Seek"—reimagined as intellectual pursuits for high schoolers. But for some reason, "accidents" keep happening, leading to some very steamy and unexpected developments!

While these boys and girls initially intended to play wholesome games, their childhood pastimes are fast-tracking them into a deeply immoral relationship...?! Playing children's games at this age is naughty, fun, and totally scandalous! An immoral youth comedy begins!

"With this power, couldn't I become a mysterious mage who stands out while no one knows who he is?"

Higashiyama Touri is reincarnated and granted the ultimate talent for a rare and special type of magic, "Dimensional Magic" by God himself. Dreaming of becoming the cool, enigmatic powerhouse whose name spreads through whispered rumors while he enjoys a quiet drink at the bar, Touri decides to act out his fantasy. Right after reincarnating, he rescues an adventurer party from being wiped out by a giant monster. Expecting the girls to spread rumors about him, he is shocked when instead... the country's strongest party, full of beautiful women, starts following him around?!

Dirty oldman isekai

Fantasy harem-comedy begins with a kind-hearted uncle who helps the weak, crushes the strong while doing some consensual seeding here and there.

The power of Valhalla's warriors is called Saga. It is the mighty, magical power born from their achievements and deeds in their former lives. Thus, the more stories and legends of these warriors spread and linger in the hearts of many, the stronger their Saga becomes.

Tae Ho himself was certainly no warrior. However, he was the world's top professional gamer. In the game world of Dark Age, his character, Dragon Knight Kalsted could rightly be called a legend in his own right.

His achievements, his story.

All the accomplishments that the Dragon Knight Kalsted had accumulated in the game!
[Saga: Immortal Warrior] The story of the immortal warrior, Lee Tae Ho, unfolds on the battlefield of the gods, Valhalla. To put an end to Ragnarok, which threatens the world's very existence, a new Saga begins at this very moment.

Anyone who has done a "certain act" in school will become unable to take off their underwear. The only one who can undo that curse is Kamite.

Suddenly appearing in a different world, it looks like I got caught up in a Hero Summoning. And of course, I’m not the Hero, but it’s another guy……and while being very cautious and scared of the cliche of the cliche-like development, I was thrown into the maelstrom of war……or not.

The Demon Lord? It was defeated a thousand years ago. Hero? He’s just the main actor in a festival. Nobles? They’re kindly taking care of us. The Demon Race? They have good relationships with Humans. Wars? It’s already 800 years since the last one. Monsters? The Guild and Order of Knight are taking care of them. Return to Earth? It is eventually No-Risk.

What I’m planning after being caught up into this? I’m gonna enjoy the life in a different world as much as I want to, go on a cultural exchange and sightseeing, and after experiencing the festival that is only held once every ten years… I shall go home safely.

The other world was at Peace.

A kind world where the three races, the Spirit World’s Magical Races, the Celestial World’s Divine Races, the Human World’s Human Races, they are kind neighbors to each other, with everyone living a peaceful and fulfilling life.

But although I wished to peacefully spend a year before my return, for some reason, the heavyweights of this world keeps gathering around me, and…

Exploring undeveloped unexplored regions from scratch! Creating and building a city with plant magic!
The boy Elt, who reincarnated as an aristocrat, was branded as incompetent and was thrown out as a manager of a remote area with zero territories.
However, his "plant magic" was the best all-purpose magic for territorial development! As
he cultivated by utilizing the magic that produces from crops to buildings and the knowledge of the previous life , the number of territories increased and became lively.
Moreover, the territory that should have nothing is actually a treasure trove.
A pioneering record of a different world, the opening of comicalization!

One night, Eizo, a hapless corporate slave, saves a cat and gets hit by a truck. The cat which seems to be related to a parallel world, in return for his help, grants Eizo a skill of his wish and reincarnates him to another world. Eizo, who has craftsmanship as a hobby and wishes to use this skill for a living, chooses to be reincarnated as a blacksmith. And so he starts his life in another world as a blacksmith just as he wishes. However, Eizo's creations are at another different level that will shake this new world.

Author’s Twitter: https://twitter.com/tamamaru
Artist's Twitter: https://twitter.com/himori_yoshino
Kadokawa Books (LN): https://kadokawabooks.jp/product/kajiyadehajimeruisekai/
Web Novel: https://ncode.syosetu.com/n7266fe/

Touya, the strongest player in the game Pandemic World Online, had won so many items that he decided to create an alternate account to store the extra ones. While playing this very game in his second account, he was summoned to another world as a character he made, where the people were merrily expecting a hero. However, when it is known that he doesn't have the title of a hero, he is discarded and replaced by another person. Now, he must survive in an another world with the account he merely used to store his extra items in.

Links:
Original Web Novel: https://ncode.syosetu.com/n9275ei/ (Japanese)

Ikuto Touhohin just had a last fight with his old man, one that led him to make a rash decision to run away from home. He boards a ship, deciding to take a vacation, but the ship is suddenly hit by a huge storm--one that sends Ikuto overboard! When he regains consciousness, he realizes he is still alive… on some island. An isolated island. An isolated island with nothing but girls and talking animals. Stranded on an island with only girls, no electricity, gas, radio, television… like he was back in the stone age.

On his way home from work, Aokai Seiji, a struggling actor in the JAV film industry, accidentally looks away and got hit by a magic mirror JAV Truck! He wakes up in a medieval-like world and gets caught up in the "filming" with beautiful elves?!

That day, Ishida Yamada was working part-time as usual. When he opened the back door after finishing his part-time job, he found a blank space and a person who called himself God. It was by chance that he was chosen by God to go to another world. He was perplexed, but decided to live anyway. Thinking about how to survive in this other world using the skills he received from God, he tries his best to have a physical relationship with a beautiful woman in this other world.

Hiromi Sonoda has no girlfriend, no job, and no home, until he finds a shared-house with very cheap rent and goes to check it out. However, the share-house has a certain condition... Kei Sasuga presents a new "Share House Romantic Comedy"!

A world where God will grant abilities called Skills to those who come of age. The protagonist, bestowed with two skills, uses them and rises to an existence called a hero.

When a child is born, they are granted a [JOB] by the goddess of light. Unfortunately, Ain is granted the unfavourable job of an [Appraiser]. All he can do is appraise materials, and so he is treated horribly by his own party. Then, one day, he happens to come across an S-Ranked tree hidden in a dungeon. Following this encounter, Ain slowly but surely changes...

Links:
Web Novel: https://ncode.syosetu.com/n5242fx/ (Japanese)

The Adresia empire on the Vogel continent. There is a battle over the throne of such an empire that possesses powerful military and vast territory.
With the successor undecided, the children of the emperor are vying to expand their power. However, there was one prince that everyone says will definitely not become the emperor.
The seventh prince, Arnold Lakes Adler. The young man who was inferior to his younger twin brother in every way, the dull prince.
Incompetent and lethargic, Arnold wastes everyday just playing around. However, behind the scenes, he is one of the only five SS-Class adventurers called ‘Silver’.
Seeing the intensifying battle for the throne he decided “I don’t want to die so let’s have my little brother become the emperor…”
This is the tale of absurd secret manoeuvres of the prince who is uninterested in the title of the emperor.

Yuta Uematsu is a aspiring novel writer who has long had feelings for his childhood friend Michiru Okuwa, who had always supported his creative work. He finally decided to confess his love to her, even though he didn't feel like he was a match for Michiru, the most popular girl at school. When Michiru brushed him off with the words, "It's impossible!" and stormed out, Yuta was left stunned in disbelief. Michiru went back to reading "Digital Masters," a very popular web novel. However, "Digital Masters" was actually Yuta's work....... This is a romantic comedy revolving around Yuta, who is actually a very successful writer, and his high school life.

A girl who calls herself a devil appeared before a timid student named Fumio Kijima. The girl claims to be a campaign girl from the demon world and she gives him the ability to “summon a room” from nothing but thin air.

At first he doesn’t abuse his power and uses it as a convenient ability in his every day life. But one day he is bullied by his classmates under an unfair pretext and is made to suffer. In the past he would have wallowed in misery and cried himself to sleep, but now he had a power to call upon.

“I will make them regret it!”

Using his powers to summon his “room”, he begins his era of confinement and brainwashing to achieve his goals.

The protagonist is a guy who is among the stupidest of the stupidest in the school. In this school your grades can, under the supervision of teachers, take a virtual form to do battle! However, if you leave an examination midway, you get zero marks. A bright and cute girl, Mizuki Himeji, had a high fever during her examination. Despite her potential to be the second highest scorer in the level, she obtained zero marks for having left due to her illness and is thus banished to the worst class, Class F.
Grades mean nearly everything. For Class A: They have a smart-looking teacher, a plasma TV as big as the entire wall as their blackboard, personal laptops, personal air-conditioners, refrigerators, adjustable seats and all kinds of different appliances. Within the refrigerator, there are all kinds of drinks and snacks. Their ceiling is made of glass, the wall lets them put up high-class drawings and plants.
As for Class F (the worst class): They have Japanese desks and seat paddings. Their blackboard is dirty and there's even no chalk! Someone complains the legs of his desk are broken, so the teacher asks, "Didn't we distribute some glue to stick wood together? Glue it back yourself later." Another one complains the wind is blowing in from the broken window. The teacher says, "I got it. I'll apply for plastic bags and super-glue to fix it later." There are spider webs everywhere, not a patch of the wall is clean. A unique moldy smell spreads across the entire room; it must be from the old tatamis used to tile the floor. Welcome to Class F.
The protagonist feels displeased at such an arrangement; he seeks help from his friends to try to make a change through invoking war! And they devise all kinds of plans to try to beat the famous Class A, scheming to get Class A's classroom and equipment if they win.