In regards to the MMORPG Cross Reverie, Sakamoto Takuma boasted an overwhelming strength that was enough for him to be called the Demon King by the other players. One day, he gets summoned to another world with his appearance in the game. There, there are two people that insist, "I am the real summon master." Takuma gets slave-turning magic used for summoned beasts cast on him by the girls -
However, the peculiar ability Magic Reflection was invoked! The ones that were turned to slaves were the girls! Takuma was bewildered. He's the strongest magician but, he doesn't have any communication skills. Panicking, the first words that came out were the ones that he used inside the game role playing the Demon King!? "I'm amazing you say? Of course I am. I am Diablo... The one feared as the Demon King!"
This is the story the Demon King (acting) that would soon inspire the world and his other world adventure that he plunges through with his absolute strength, raise the curtain!

Meet Sefiria. She may be just a baby now, but she holds a dangerous secret — she has memories of her previous life as a Japanese salarywoman. Anyway, yadda yadda yadda, she died, got isekai’d, bada bing bada boom.

Now for the meat and potatoes of things. After experiencing the hell of living in such a rigid society like Japan beforehand, Sefiria wants to avoid making that same mistake in her second life. That’s when she remembered a famous saying back in her previous life:

“At ten years old, you can be a prodigy. At fifteen years old, you can be a genius. At twenty years old, you’ll just be a normal person.”

While the new world she was born in considers adulthood to start at the age of 15, Sefiria has a repository of knowledge from her old life to help back her up. Can she become a prodigy at an early age, revolutionize her world, and ensure herself a slow life that any Japanese reader would love to self-insert into?

A young man wants to marry the mothers of the hero's party—

As a member of the hero's party Ceres, the main character, set out to defeat the demon king.
But one day, he was suddenly dismissed by the hero, and he had to leave the party.
All alone, Ceres sought to find a domestic slave to take care of him. What he saw at the slave market was Ms Shizuko, the mother of the hero, sold as a slave—??

The unreasonably expelled young man's Isekai mama harem is born!!

Zarmen, an adventurer who can't level up decides to retire from the adventurer business. Furthermore, in order to graduate from virginity, he decided to splurge on all the assets that I had diligently saved up since his reincarnation at a high-class brothel. The woman who appeared in front of him was the finest woman he would ever have known. Thanks to her hospitality, Zarmen fully enjoys his first time, but at that moment, his ears hear a mysterious announcement, "Impregnation confirmed.", "Level up!" "Does this mean that the more "seeding" you do, the stronger you get?"An extraordinary implantable foreign world adventure fantasy created by a bottom adventurer who has been at level 1 for many years levels up through sex!

An angel made a mistake, resulting in Shiihara Daiki’s death. In order to hide the mistake, he was then sent to a different world. The angel will grant him one wish as a payment for keeping it a secret. Daiki asked for a Heavenly Castle floating in the sky without hesitation.

Suddenly a floating castle appeared in the new world, which causes confusion amongst the people. They attempt to contact Daiki in various ways. A country tries to steal it by force, while another seeks to befriend him. What in the world will Daiki do?

KUZUNO Sekai was transported to a medieval fantasy game-like world (isekai). He was given a game controller with the ability to stop time and a 3 days countdown timer. Now he has to figure out the mechanics of this game world and clear it in time.

The sequel to Elf-san wa Yaserarenai (Plus-Sized Elf), set up as the manga switched publishers from Wani Books to Akita Shonen.

You know the drill by now - Naoe is a massage therapist whose life is turned upside down when he starts dealing with girls from another world and their weight issues. But this isn’t called Shin Elf-san for nothing. You’re going to get fully-colored pages due to its digital release, as well as new scenarios involving your favorite chubby elf.

Get ready to get down with the thiccness!

The protagonist fell asleep while playing an online game. However, he awoke in a strange world with his game character’s appearance. In a state of shock, he noticed that he was equipped with nothing but his strongest weapon and armor. To make matters worse, our hero’s appearance was changed by the special avatar skin 『Skeleton』 when he enter this new world. The protagonist wanted to live without drawing attention, but he got acquainted with the dark elf Ariana and received her request.

I had been abroad to do medical volunteer work, when I was swept up in a civil war. I was killed by a rebel soldier, while taking a bullet for a patient. But when I finally woke up, I had become a child?!?

And in front of me stood a destroyed carriage and a group of oddly dressed people, who were unconscious!

“It’s just like a Murim world.”

As I hurry to perform first aid in an attempt to save even one person, I realize that this world is that of [The Supreme Demon King], a Murim novel I’ve enjoyed reading.

After meeting the rescue team of the ‘Three Great Doctors’, I found out that one of the person I saved was the protagonist of this novel, the future Demon King ‘Yeoharyun’!

“Hey, since I’m indebted to you for saving me, call me ‘hyung’.”

For saving his life, I become sworn brothers with the future Demon King, and Baekrineuison, one of the most knowledgeable people around, recognized my potential and took me in as his disciple. This is the story of how I became the greatest physician in Gangho!

A story about a little summoner girl that accidentally summons a shark from another world as her pet that has all of the powers seen in shark movies in the modern world.

Tokonatsu Taichi took the summer Koshien by the storm as a sensational ace pitcher, with a full arsenal of pitches including a 98 mph fastball. But on the way home from the game, the team bus suffered a tragic accident and Tokonatsu Taichi lost his life... Only to be transported to a new world where all international conflicts are resolved by a game of baseball. Unfortunately, the country he landed in was the weakest, and had seen gradual loss of its resources and people to neighboring countries. Can Taichi turn their fortunes around?

Waking up, Kim Hajin finds himself in a familiar world but an unfamiliar body.

A world he created himself and a story he wrote, yet never finished.

He had become his novel’s extra, a filler character with no importance to the story.

The only clue to escaping is to stay close to the main storyline.

However, he soon finds out the world isn’t exactly identical to his creation.

Tang Sect, the most famous martial arts sect of all. By stealing its most secret teachings to fulfill his dreams, Tang San committed an unforgivable crime. With his ambition attained, he hands his legacy to the sect and throws himself from the fearsome “Hell’s Peak.” But he could have never imagined that this would take him to another world, one without martial arts and grudges. A land where only the mystical souls of battle lay. The continent of Douro. How will Tang San survive in this unknown environment? With a new road to follow, a new legend begins…

You may also like:
+ Douluo Dalu II
+ Douluo Dalu III
+ Wu Dong Qian Kun

After falling into the ocean, Wataru Toyoumi, finds himself reincarnated in another world! Armed with a skill to allow him to summon boats he plans to get rich and live a happy life aboard his very own luxury liner.

I reincarnated in a novel inside the body of a villainess named Eris who poisoned herself when her fiance, the prince, married her childhood friend, the maid Helena.

From the moment I realized this, I had only one goal.

Escape from the world in this novel.

Even after being dead, I tried to get out of this world but the 'world' did not allow it.

However, when she rejected the path of "Eris" in the original novel the men who had persecuted and ignored Eris began begging for her interest and affection.

“Who are you?” the priest who revived Helena asked.

“You... Are you really Eris?" even the warrior who pledged eternal loyalty to Helena also asked.

“You have changed.” said the prince who rejected Eris in order to marry Helena.

It was strange.

Everyone wasn't interested in Eris before. I don't want to get affectionate even after time passes.

She has no confidence in loving this world.

Charlotte, who reincarnated as a villain girl in a maiden game, started to avoid the death flag. The goal is to spread the sake that I loved in this world! However, the juice and holy water that I made for trial were all nonstandard ...

A different world, "Sake" fantasy, opened by a cheat girl!

Hidako Masamune is a high school student who suffers from continuous bullying by his classmates. Becoming tired of it all, he decides to commit suicide, but instead he is transported to another world along with all his classmates. When they arrive, they find that they now possess amazing abilities, but he was only granted the status of a "healer," the weakest skill of all. The king decides to get rid of him by transporting him to another far away place, but not before Hidako swears revenge against the king, the kingdom, and all of his classmates.

Listen up folks! I’m living my life with the demon queen!

An office worker, Yuuto Aida, witnesses his wife's affair at home! When he jumps out of the house, he gets hit by a truck and is reincarnated in another world as a hero!! However, due to the misunderstanding about Goddess Reincarnation, he only had one skill, it was a skill that could captivate other people's wives!!

(MTL)

For some reason, he was invited to another world after he rolled the gacha like he usually does.
The gacha from the social game is available in his trusted smartphone.
It was a convenient and cheat tool that can give out equipment and beautiful girl characters.
He now aims to create the world's strongest army of beautiful girls in another world.