Losing his memories, the curtains of the story of alternate world transfer of the MC rises. After the transfer his name changes to Kelvin. While steadily levelling, he adds new subordinates by mastering his skill. And by the time he noticed it, he had obtained overwhelming power. Where will our MC be heading off to?

The Magician named Yard was suddenly summoned in different world as a Hero. The sorcery in this world is behind compared to Yard who came from another world. The other summoned heroes are also unreliable. Furthermore, it is not possible to return to the former world... In such a hopeless situation, Yard chuckles to himself. Get ready, humans of this world. This world where witchcraft is behind. I have enormous toy in this box. allow me to play with it. The Villainous magician named Yard tramples down the other world with overwhelming Dark magic!

After dropping out of school, Kwon Daegun is preparing for his qualification exam. While working a part-time job in a convenience store he got into a fight with some thugs. Daegun, who easily overpowered them, is offered a project called “Iljin in Charge/The Bully In Charge” by the Educational Foundation, which has been closely watching him for a long time. He, who accepted the offer after much consideration, enters a high school that belongs to the foundation and defeats the core bullies of this school one by one according to the order of the foundation.

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.

Six years ago, Natsuki Yura was summoned to another world as a hero. After defeating the Demon King and finally managing to return to his original world, he discovered that Earth was actually full of fantasy too—psychics, aliens, angels, gods, you name it.

A man is stabbed by a robber on the run after pushing his coworker and his coworker's new fiance out of the way. As he lays dying, bleeding on the ground, he hears a voice. This voice is strange and interprets his dying regret of being a virgin by giving him the [Great Sage] unique skill! Is he being made fun of?

From MangaHelpers :
High school student Misumi Makoto is called into a fantasy world by the god Tsukuyomi, in order to be a hero. However, powerful others in this world aren't as thrilled to have him there, and they kick him to the edge of the world just as Tsukuyomi declares that he must leave Makoto to find his own way. Now it's up to Makoto to find his own way.

Akira is just having an usual day at his second year of high school when he and his fellow classmates get sucked into another world through a portal! This fantasy land is called Morigan, and is a world filled with Demons, Humans, Elves and other mystical creatures. As they get debriefed by the King of one of the continents on this strange new land, they were informed that each one of them will have a class, which skills can be conveniently opened and analyzed through a "status bar", and their objective is to train, become stronger, and repel the imminent demon invasion.

Only one of them, however, will be able to become the true.

Akira found out that he got the class and with heavily overpowered stats, surpassing even those of the class. Making use of his shinobi-like skills, including subterfuge, negotiation and stealth, Akira goes into thrilling quests and unveils secrets about this strange new world, including a meeting with a cute Elf girl and others members of a soon-to-be adventuring party where not everything is as it seems...

A polite and lethargic boy was reincarnated in another world as a vampire bishoujo. In this world of swords and magic, this protagonist who was reborn replete with all kinds of cheat powers was searching for one thing――! “Three meals a day, snacks and an afternoon nap, I guess.” Are you really the protagonist! And thus begins the fantasy comedy of a vampire looking for the ideal moocher lifestyle…?

"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.

A young man unfortunately died in the modern era, he reincarnated in another world under the name "Eldo," which also happened to be a world similar to a VRMMO game that he used to play in his previous life. However, it's a world where he knows the "basic skills." Eldo became a level 1 adventurer, playing as a "novice," but he knows the world better than anyone, and this is because of the "data he knows." Will the reincarnation in this world make him strong?

A super-powerful guy keeps defeating everyone around him, even though he doesn't like fighting.

A man who was once called the world strongest agent ended up becoming a teacher after his retirement to train the new generation of agents. After many years of training his disciples, he is killed at the age of 60 by the ploy of a secret organization and was reincarnated in another world with all his past memories.

Though he was surprised by the magic and the strange species of that world, he adapted very fast to his condition as a newborn and took advantage of it. He acquired special magic and gained a massive amount of strength thanks to his tight discipline, in order to reach his goal: Resume his career as a teacher which he left halfway through in his previous life.

This is the story of a man, who, based on the memories and the experiences of his previous life, became a teacher who travels through the world with his students.

"Will you be summoned to the world of a never-ending game?" One day, I was looking for a new game, when I suddenly saw that ad. After choosing the most difficult mode of the game, "hell mode", I was suddenly reincarnated into a new world as a farmhand. As a boy named Allen, I started my journey in another world with the highest difficulty, overcoming all challenges to achieve the greatest title of the game "Summoner" .----- The 1st rank promising novel in the magazine "Let's become a writer", an extremely anticipated story.

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!”

Long ago, a powerful demon lord ruled over the people until an equally powerful hero rose up to defeat him. To counter future threats, Rosewood Academy, a school for heroes-in-training, was created. Today, Rosewood Academy enrolls only the best of the best, and Arnest Flaming is the best of them all. The top student in the school, a dutiful girl nicknamed "Empress of Flame", she has an irritating encounter with a light-hearted boy in the school hallway one day who seems to equal her powers, though she's never seen him before. He introduces himself only as Blade, and Arnest soon finds out not only is he transferring into the school as a new student, but she is personally requested by the King to help him settle into daily life in Rosewood Academy.

When Theodore was dropped into a waterway by his half-brother, he suddenly recalled the memory of his past life. He had been a Japanese citizen known as Kirishima Kagehisa, placed inside VRMMO character he had made in Break Force Online. "Theodore" is a Combat Mage that Kagehisa played within BFO, and he realized his skills were progressing well even in this other world. Theodore, who had lightly brushed off his half-brother to make his own place in the world, had ventured off to the large labyrinth existing at the Boundary City, Termuilles.

A magic nerd's life came to an end after a dreadful encounter with the nobles who ended his life with a powerful spell. His last wish, being able to study and master more magic, has been answered when he was reincarnated as Saloom Lloyd, the 7th prince of Saloom Kingdom. Now he'll be able to perfect his magic as he pleases...

Astra Ludger Doomsday, former captain of the royal knights has finally achieved his dearest wish: To retire and use his savings to get his very own house.

But not long after finally arriving at his sanctuary, a young girl crash-lands into his house. The girl is an apprentice witch and seems to mistake Astra for someone else.

Arata is reincarnated in another world with the privilege of a healthy body and a place where he doesn't have to deal with people. On the island where he is reincarnated, there are only monsters, divine beasts, true ancestor vampires, ancient dragons, and so on. No, there are certainly no "people," but...

The first time you reincarnate, you're in desperate straits! I thought I was in a desperate situation, but it seems that my "healthy body" is "invincible" and I don't have to worry about it. While lightly accepting his mythical power, he is living a comfortable and leisurely life, cooking and walking together, living in a tent with a beautiful girl, and holding a party with everyone on the island... "Brother, let's eat dinner together! Master, play with me!"