From MangaHelpers:

Technology has now allowed the full integration of virtual reality in massive multiplayer gaming. Gamers can now immerse themselves in a fantasy world, and fully experience a role-playing game. The first game to implement this system was called "Eden." Gamers around the world flocked to their first chance of being part of this system. Three years have passed since the discovery of the bug in "Eden." This bug prevented anyone from "logging out" of this game. Players were forever trapped in the fantasy world of Eden, and now had to fight to survive inside the game.

Our main character, nicknamed "Teacher," continues to follow the road of the beginners course inside the game. Tirelessly training his skills, he fights alone against any enemy to become the strongest player in Eden. [DrCoke]

The year is 12,090 A.D., and what little is left of humanity has finally crawled out from the ashes of war and destruction. From the darkness of fallout, mutants and a race of vampires known as the Nobility have spawned. They rule the weak with no remorse. Once bitten by a Nobility, one is cursed to become a member of the undead. Villagers cower in fear, hoping and praying for a savior to rid them of their undying nightmare. All they have to battle this danger is a different kind danger – a Vampire Hunter.

Enter D – a lone, mysterious vampire hunter, sought out by the desperate Doris Lang. Bitten by the vampire lord Count Lee, Doris is destined to her unholy fate... Can D deliver her from her curse and bring her to salvation, or will she forever be part of the unholy dead?

Note: Kikuchi personally selected Saiko Takaki, a doujinshi and graphic designer illustrator who has worked on numerous projects for the manga and game industries in Japan, to be the mangaka responsible for the adaptation of his successful novel series into manga form.

Akegawa manatsu a normal high school girl and her friends, Stuck on school and can't escape, due for some phenomenon.. Trying to find a way to escape they encounter mysterius things.

In the immediate future, a giant meteorite has collided with earth. All living organisms, including mankind, have been wiped off the face of the planet. The government, who had foreseen this outcome, took measures to counter the worst-case scenario. In particular was Project "7 SEEDS", in which five sets of seven gifted young men and women were carefully selected and placed into teams (Spring, Summer A, Summer B, Autumn and Winter). Each participant was then put under cryogenic sleep in hopes of preserving the continued existence of mankind.
When those men and women awoke, they found themselves suddenly thrust into a cruel world. While bereft and grieved over forever losing their loved ones, they sought to find ways to survive.

Note: Won the 2007 Shogakukan Manga Award for shoujo manga.

We came from the far future, where most of the adults have disappeared as if they vanished into thin air and all of the children are managed by a few adults. To discover the cause behind human extinction and to evade it from that root cause... That's what we had jumped to the past for, supposedly.

A boy sitting in the seats of a movie theater fidgets with his cellphone. "Before aptitude or anything, trying to change the future with just five kids? You would think there's a limit to lack of planning," he typed on his cellphone.

The boys wonder if they had really come to the past. Why? Because, ever since they arrived, they haven't stepped one foot outside this theater.

Note: This manga is included as a bonus with the limited OVA Blu-ray disc.

Wang Huan, is a veteran assassin who has an important mission and is to eliminate the head of the Lin Group. However, something goes awry and the mission is declared a failure. Moreover his informant turns out to want him dead. An explosion and he should have died... But instead wakes up in a game world where there are insect people. What will happen to him now?
RAW: https://www.onemanhua.com/10309/

In a timeless quest that brings all elements (pun!) of Asian history and culture together, Avatar: The Last Airbender has the perfect blend of action, comedy, and adventure! And where martial arts translates to “levitate-rocks-and-chuck-them-at-your-enemy's-face,” you just want to jump right up and join the local karate school!
There's no doubt Avatar: the Last Airbender has struck it rich with fans across the board, and this editor is just one of them! ATLA quenches my thirst for Asian cultures not usually seen in the world of animation while drawing me in further with magic and action! And with a fresh blend of characters, anywhere from a sarcastic older brother to a legion of butt-kicking girls, I keep coming back! At only two seasons completed, and a full four to be expected, ATLA will be sure to have much more to offer its loyal fans.

Mary, a suicide prevention AI

A new discovered 10th planet, called Lametal, will collide with earth on 9th September 1999. While the impact won't affect the giant ice planet critically, earth will be destroyed. Yayoi, daughter of Lametal's queen and entrusted with the mission to abduct a large number of humans for slavery, befriends the orphaned boy Hajime and starts to question the intentions of her mother. Together with her human family and friends, she takes up the fight against Lametal and searches for a way to avoid earth's destruction.

Go Sung-tae is the target of the bullies in his school... voluntarily. He is a part of a secret experiment by the government that aims to produce "Heroes" in hope of rivalling the other countries. Not wanting to get involved, he steers away from the prying eyes of the government by keeping a low-profile, being the "timid" kid.

The most popular girl in his school, with a strong sense of justice decides to follow him with the intention of helping him, only to discover that he was faking his personality. (On top of that, his secret got revealed.)

What will happen to Sung-tae now?

Yuzu, a girl living an idyllic life in an enclosed paradise, could not stop questioning about what might lie outside. One day, a boy named Taro invades that paradise and disrupts its peace. It turns out that the world Yuzu lives in is an experiment run by a scientist from the technopolis of Zelas. Yuzu finds herself outside, in Zelas, on Earth in the year 2155. The culture of the technopolis has lost all fear of god and is openly conducting human experiments. Yuzu, Taro, and others must find their way to a place of safety, and thus they decide to head into space.

The year is AD 2048. Japan is connected to the Eurasian continent by a transcontinental railroad. The capital, Tokyo, has become a crucible of criminals and terrorists. And so, in the metropolitan darkness a mysterious presence attacks and slaughters people, unnoticed, night after night... Just what are these "things that are not human" living in hiding in the human world? And just who is this "Origin" person who faces them?

Note: Won The Japan Media Arts Festival for Manga Grand Prize in 2019.

The original collection of Aoyama's short stories. Ranging from sci-fi to romance, and the right out wacky, these stories are a must read for any fan of his other works!

1) Detective George's Mini Huge Cases: Calling on the Great Detective!

2) Detective George's Mini Huge Cases: The Monster of the Ice Country

3) Detective George's Mini Huge Cases: I Am A Dentist

4) Play It Again

5) Excalibur

6) Santa Claus of the Summer

7) Wait for A Little While

8) The Wandering Red Butterfly

The series takes place four years after the events of Magical Girl Lyrical Nanoha StrikerS, during which magical girl Nanoha Takamachi rescued and adopted a young girl named Vivio, who is the reincarnation of the Sankt Kaiser, Olivie Segbrecht. After entering her fourth year of elementary school, Vivio is given her own intelligence device, Sacred Heart, and gains the power to transform using her adult Sankt Kaiser mode. She soon comes across a girl named Einhart Stratos who, similar to Vivio, is the descendant of another Sankt Kaiser ruler, Claus G.S. Ingvalt. As Einhart becomes determined to prove her fighting style is the strongest, Vivio befriends her and, together with her friends, enters a martial arts tournament where they fight against various magical opponents and learn more about their past lives.

Denma is a Quanx, a special breed of humans who possess unique, superhuman powers. He used to be an infamous space villain, but he was tricked by a beautiful woman and found himself trapped in the body of a child - and he's been forced to work as a space courier ever since to get his real body back.

Denma is a fantastic tale of myriad space adventures that Denma goes through, filled with spaceships, ESP, high technology as well as insidious conspiracies and heartbreaking romance, all coming together to present a wonderfully constructed futuristic society controlled by greed, lust, and desire.

An unattractive office lady in the fashion industry gets the chance to alter her appearance through a beauty app by completing tasks with heavy consequences.

A tournament using DOLL (humanoid robot suit) to be the last standing person.

Among the humans who walk the earth, also exist many aliens. The vast array of aliens can use abilities like telepathy, spells, and will even blow up whole planets! Perhaps that’s why they look down on us humans, but one thing is for sure, they love drinking just as much as we do! What appears to be just a friendly drinking party between young male and female aliens is actually not as innocent as it seems. What exactly will unfold by the end of the night?

From MangaHelpers:
Namidare Rekka has a very unusual birthright. After his 16th birthday, he will be drawn into many different stories. Each story has a heroine, and each story depends on him to be the hero. On his first day of high school, a strange uniformed girl that only he can see shows up. She claims to be from the future, and claims that his rescuing of many heroines is going to cause serious trouble for the future.
It's not long after this encounter that his troubles begin. His childhood friend Satsuki invites him somewhere, possibly to confess her feelings for him. However, before she can, she's kidnapped! Rekka wants desperately to help her, but he finds himself being tossed into various sci-fi and fantasy worlds, each with their own heroines in trouble. Will he be able to get back to Satsuki? Will he be able to save all the others? How can he really tell the consequences of his well-meaning actions?

The discovery of SA cells triggered a dramatic advance and collapse in human civilization. The new sentient, Adams build and control the new society, pushing the rebelling Anti-netters’s appearance. Young Eda and his father has been living in secret for years, although he never sure if he was an Anti-netter. When he finally kept in the prison of Anti-netter, Eda finally comes closer to the truth of the new society.