The protagonist who was rarely ever at school during his middle school and high school days, is unemployed even as an adult. From morning till night, it was video games. For him who was ranked first worldwide, it was his life.

One day, his character is suddenly hacked. The data was unrecoverable and there was nothing that could be done. Feeling great despair at having lost his rank that he had bet everything to achieve in a world that controlled his life, the protagonist attempts suicide.

When he awakens, he finds himself inside the video game, no, it was a real world that resembled it. There, he notices that he has reincarnated into the the body of a sub character that he had created and bought premium benefits for long ago but had left neglected.

As regular high school students Taichi and Rin disappeared in a beam of light. When they came to, the two of them were already in a world of swords and magic. Finally getting away after experiencing an attack by monsters, following the suggestion of adventurers they headed on the path towards the guild. In the guild, the two of them found out that they possessed unbelievably powerful magic. Thus the regular high school students transformed into the strongest cheats...

(Source: sylver135)

"I did it again...!"

The Hero who can't seem to set out on his journey!!

The protagonist, who was reincarnated into another world, becomes a hero and receives the task of defeating the Demon King. To repay the world that accepted him , he decides to set out on a journey... However, he can't seem to leave the first village, as he is constantly tempted by charming heroines such as the female priestess, his childhood friend who is a magician, and so on!

Thus, the birth of the "I did it again...!" type hero!

"Haruka Yamagishi" is a guy who has no friends or family and just goes back and forth between work and home. One day, when he wakes up, he finds himself in a different world. And for some reason, he's turned into a beautiful dark elf! Now, Haruka has inexhaustible magic power, a sturdy body, and a new life where she can do anything... However, through the friends she met and her activities as an adventurer, changes slowly began to take place. The guy who gave up on life in this world begins to feel what it's like to live. Although there are some traps and other events, it's a touching adventure story!

[Source: Manga updates]

Haruyoshi, the strongest onmyoji was on the verge of death after the betrayal of his companions. Hoping to be happy in the next life, he tried the secret technique of reincarnation and was sent to a different world! Born into a family of magicians, the magic he failed to inherit was nothing compared to his previous skills as an onmyoji. “Who needs magic? I’ll survive in this world with my old techniques!”

Traveling to the world of Tian Xuan, can’t believe I’ve become a useless sect’s leader! Paying money in the city to be reborn in a game’s realm. Making the players my workers, collecting the main characters from the world as my underlings. If we’re talking about being pretentious, then I’ll only take the number one spot!

An old MMORPG called Live Dungeon. Before the service was terminated, Kyotani Tsutomu made full use of 5 notebook PCs to clear the game and was invited to a different world. And then, Tsutomu was speechless when he saw a live relay of a dungeon capture in the different world. They bulldozed through without any thought of strategy. The misfortune of getting the healer position. Tsutomu reinstated the White Mage that had always been his favorite in games and aimed to conquer the dungeon to find the key to his escape from the different world.

"THE NEW GATE", an online game that trapped its players and turned into a death game, was now releasing the thousands of players that had been dragged into it, thanks to the efforts of Shin, one of the most powerful players. But after having defeated the last boss and freed everyone, he was swallowed up by a strange light and found himself inside the game world 500 years in the future and unable to leave.

In the era of astral pets, only the might of pets was essential! However, making the pets stronger has always been a slow and arduous process for pet warriors. That was until the appearance of a mysterious pet shop that changed everything!

The weakest skeleton could slay a great golden dragon with a single strike after training at this pet shop! Even the humble watchdog of the shop possessed ten legendary skills, and the female worker in the shop claimed to be a Goddess...

As for what the shopkeeper Su Ping thinks: I'm merely training these cute pets to become exceptional overlord beasts. What? Is it not normal?

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.

Toji, a 29-year-old part-time worker who has been involved in the summoning ceremony of others has come to a different world. When he was driven out of the castle as a nuisance and gave up on everything, he saw the same status screen as an Online Game, what he used to play. What a convenient game system was available only for Toji in this world! Strengthen your weapons, summon cute monsters, etc... A free adventure of Touji begins here, focusing on wisdom and living in a different world!

The amazingly popular fantasy of Alphapolis Web ranking 1st place, long-awaited comicalization!

Entering a new series! The adventure of the strongest demon lord is far from over.

Notice: This series is a continuation of Maou-sama, Retry!.

At the lowest floor of the dungeon, the Demon Lord came face to face with a presence that appears to be the creator of this world.

His next destination is the demon territory where there's an ongoing rivalry between devils.

A new, incredibly energetic and cheerful high school girl has joined the gang. Once again, our character's bustling personalities and their idiosyncrasies will clash with each other.

The long-awaited comical sequel of a comic adaptation of the popular fantasy, full of misunderstandings!

Links:
Author's Twitter: https://twitter.com/kanzaki_kurone

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!

Arikawa Ougi, 16 years old, suddenly found himself reincarnated as a zombie?! Embarking on a journey to subjugate the Demon Lord as a zombie hero, but the use of "power" requires a "price"...? A dark fantasy in another world.

Before he knew it, Masato had been transported to a world where there were just a few more women than in his original world. However, aside from the fact that women were a little more assertive, the world wasn’t much different from the one he came from... or so he thought.

Little did he know, the kindness he spread, based on the standards of his old world, was saving those around him more than he could imagine. He was unaware that this kindness was causing the women around him to develop intense feelings for him.

This is the story of a protagonist who believes he can live an ordinary life, unknowingly making the heroines fall in love with him, and eventually realizing just how heavy their feelings are — until they make him understand it for himself...!

After winning the battle of Katze Plains and founding the Sorcerer Kingdom of Ainz, they aim for a utopia of perpetual continuity and prosperity, a world where many races kneel before Ainz. As the first step toward achieving this goal, Ainz heads to the Empire to strengthen the Adventurer’s Guild and incorporate it into the state. Behind the scenes, the nations of the world are beginning to stir with their own agendas for the Sorcerer Kingdom...! Ainz's high road, once again!

A man who has been reincarnated in a different world acquires the vocation of "pole master" in the new world! However, that special ability is not used to defeat enemies, nor to gain power, but to embrace the beautiful girls who appear one after another with all one's might! A unique story of conquering another world begins here!

The protagonist, “Sao” has been reborn with his memories from his past life. He’s born as a son of a rural villager, but his true identity is a reincarnated person with cheat abilities and the knowledge of the modern world. With the class “Rod Master,” he received as he grows up, and the many skills that came up with it, he can defeat enemies, help people, and even for sex.

In middle school, Konoha Satou dreamed of escaping into a world like that of Dark History, a romantic fantasy novel she wrote telling the story of the count's daughter Konoha Magnolia and the knight she falls in love with. Years later, her mother rediscovers that novel - only for Konoha to get hit in a traffic accident and die!

When she opens her eyes, she finds herself in the world of her own creation as the heroine's younger sister, Iana Magnolia. Somehow, she's been reborn as the character she created to be the greatest villainess of all time?!

Ghost-seeing School Boys oneshot included in volume 1 as chapter 3.5

Saitou is an ordinary handyman that gets transported to another world where his skills are very useful. He starts to really understand what it means to be needed.

Having survived an isekai for 17 years, 34 year old Ojisan (uncle) returns to modern day Japan. Takafumi, Ojisan's nephew, now gets to witness what throwing a die hard Sega fan into an isekai for 17 years does to various things and people, both past and present.