GuessAnime.

10. Honzuki no Gekokujou: Shisho ni Naru Tame ni wa Shudan wo Erandeiraremasen

Motosu Urano, a book-loving college student who just got her Librarian certification and was supposed to enter the job of her dreams after graduation, was killed during a massive earthquake crushing her underneath a pile of her own massive collection of books.

Wishing for reincarnation in order to read even more, she got reincarnated to a world with a low literacy level and very few books, limited only to the nobility of the world. As she reincarnated as 5-year-old daughter of a lowly soldier, Maine, no matter how much she wants to read, there is no way there are any books around. If there are no books then what do you do? You make them yourself of course... What her goal is, to become a librarian no matter what, and to live a life surrounded by books. For starters she begins from making them.

Ascendance of a Bookworm is finished and has 33 Volumes and null Chapters. It is also Known as: 本好きの下剋上 ～司書になるためには手段を選んでいられません～, Honzuki no Gekokujou: Shisho ni Naru Tame ni wa Shudan wo Erandeiraremasen

9. Overlord

The story begins with Yggdrasil, a popular online game which is quietly shut down one day. However, the protagonist Momonga decides to not log out. Momonga is then transformed into the image of a skeleton as "the most powerful wizard." The world continues to change, with non-player characters begining to feel emotion. Having no parents, friends, or place in society, this ordinary young man Momonga then strives to take over the new world the game has become.

Overlord is currently publishing . It is also Known as: オーバーロード, Over Lord

8. Re:Monster

Tomokui Kanata has been re-incarnated in the weakest goblin, named Goburou, after having undergone an unfortunate death. However Goburou has retained his previous life's memories, an unusual evolution, as well as becoming strong enough to gain status boosts from eating.

In this alternate world of survival of the fittest, events unfold with competent subordinates and comrades, delightful case of the tail-wagging dog...

Re:Monster is currently publishing . It is also Known as: Re:Monster, Reincarnated: Monster

7. World Teacher: Isekaishiki Kyouiku Agent

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 new students.

World Teacher: Isekaishiki Kyouiku Agent is currently publishing . It is also Known as: ワールド・ティーチャー 異世界式教育エージェント, World Teacher: Other World Style Education & Agent

6. Tate no Yuusha no Nariagari

Naofumi Iwatani, an uncharismatic otaku who spends his days on games and manga, suddenly finds himself summoned to a parallel universe! He discovers he is one of four heroes equipped with legendary weapons and tasked with saving the world from its prophesied destruction.

As the Shield Hero, the weakest of the heroes, all is not as it seems. Naofumi is soon alone, penniless, and betrayed. With no one to turn to, and nowhere to run, he is left with only his shield. Now, Naofumi must rise to become the legendary Shield Hero and save the world!

The Rising of the Shield Hero is currently publishing . It is also Known as: 盾の勇者の成り上がり, Tate no Yuusha no Nariagari

5. Gun-Ota ga Mahou Sekai ni Tensei shitara, Gendai Heiki de Guntai Harem wo Tsukucchaimashita!?

Houta Youta, 27 years old, was a virgin, a high school dropout, and a former hikikomori. His life had been pretty horrible since his high school years and now, on his way home from work at the metalworking factory, he gets stabbed to death by a drug addict. However, it seems that he has been reborn in a fantasy world.

Gun-Ota ga Mahou Sekai ni Tensei shitara, Gendai Heiki de Guntai Harem wo Tsukucchaimashita!? is currently publishing . It is also Known as: 軍オタが魔法世界に転生したら、現代兵器で軍隊ハーレムを作っちゃいました!?, When a Gun-Nerd Is Reincarnated to a World of Magic, He Established a Harem Army of Modern Weapons!?

4. Tsuyokute New Saga

After a fierce battle, Magic swordsman Kyle finally killed the Demon Lord after being seriously injured in the battle. Kyle on the verge of death approaches a relic which was in possession of the Demon Lord and it sends him to the past. After recovering from the initial shock, he decides to use this opportunity to avoid making the same mistakes of the past and become stronger.

Tsuyokute New Saga is currently publishing . It is also Known as: 強くてニューサーガ, Be Stronger! New Saga

3. Sword Art Online

In the year 2022, gamers rejoice as Sword Art Online-a VRMMORPG like no other-opens its virtual doors, allowing players to take full advantage of the ultimate in gaming technology: NerveGear, a system that allows users to completely immerse themselves in the game world by manipulating their brain waves to create a wholly realistic gaming experience. But when the game goes live, the elation of the players quickly turns to horror as they discover that, for all its amazing features, SAO is missing one of the most basic functions of any MMORPG-a log-out button. Now trapped in the virtual world of Aincrad, their bodies held captive by NerveGear in the real world, users are issued a chilling ultimatum: conquer all one hundred floors of Aincrad to regain your freedom. But in the warped world of SAO, "game over" means certain death-both virtual and real...

Sword Art Online is currently publishing . It is also Known as: ソードアート・オンライン, S.A.O, SAO

2. Tensei shitara Slime Datta Ken

After being killed by a passing robber, a normal 37-year-old guy find himself reincarnated in another world as a blind slime with unique skills. With a new name "Rimuru Tempest" he got after meeting his new friend, the "catastrophe level" Storm Dragon Verudora, he starts his slime life in another world with his increasing number of minions.

That Time I Got Reincarnated as a Slime is currently publishing . It is also Known as: 転生したらスライムだった件, Regarding Reincarnated to Slime

1. Arifureta Shokugyou de Sekai Saikyou

Seventeen-year-old Hajime Nagumo is your average, everyday otaku. However, his simple life of pulling all-nighters and sleeping in school is suddenly turned upside down when he, along with the rest of his class, is summoned to a fantasy world! They're treated like heroes and tasked with the duty of saving the human race from utter extinction. But what should have been any otaku's wet dream quickly turns into Hajime's nightmare. While the rest of his class are blessed with godlike powers, Hajime's job, Synergist, only has a single transmutation skill. Ridiculed and bullied by his classmates for being weak, he soon finds himself in despair. Will he be able to survive in this dangerous world of monsters and demons with only a glorified blacksmith's level of strength?

Arifureta: From Commonplace to World's Strongest is currently publishing . It is also Known as: ありふれた職業で世界最強, From Common Job Class to the Strongest in the World