Depicting the story of a shut-in, Kirihara Yukito, after being reincarnated into another world.
His peaceful life with his precious caring sister, Sana, suddenly come to an end when a beast appeared and attack them, thus reincarnating him into the “Ever World”. Moreover, knowing that Sana also got reincarnated into the Ever World, for the sake of finding his beloved little sister he begins his journey in another world…

Village girl Chelsea, who is beloved by everyone, is actually the reincarnated ex-Demon King.
However, when she reincarnated, for some reason neither her magical powers nor skills were inherited, and she was forced to live as a normal human being.

Humiliating days continued until one day, the remnants of the Demon King's army appeared to loot the village. Hunted down by her former subordinate, who did not realize her true identity, Chelsea finds herself in a perilous situation. Then, a skill finally manifests! The name of that skill is "Begging for Mercy"!?

A 30-year-old Japanese NEET joins a private military contractor in the Middle East and becomes the handler of some soldiers.

Tanaka was a salaryman who lived an average life. That life came to an end when he was 41 years old…or it was supposed to. But when he came to his senses, he was standing in a world that resembled ‘Medieval Europe’. There was no heating system, and food was eaten with your hands. On top of all that, pigs ran wild in the city…and what did the pigs eat? Shit. And in this harsh world, Tanaka would live his second life as ‘Varian De Lioncoeur’. Will this average salaryman be able to survive?

Links:
Web Novel: https://ncode.syosetu.com/n4662ec/ (Japanese)

Picking up directly after the events of 20th Century Boys, it seems like the world is finally out of danger, but the mystery of "Friend" still exists. As the world is threatened again, Kenji must search his memories for any clue about "Friend."

Note: 20th Century Boys and 21st Century Boys' combined storyline won the Grand Prize at the 37th Japan Cartoonist Awards on May 9, 2008.

Let me tell you the story of Arcs Reytheft
A great feudal lord’s disgraced eldest son
Because he was weak, he his family left
And so he strives to become the strongest one

For you see, Arcs was once a Japanese man
And got sent to this world as soon as he died
His father wanted to have Arc inherit his land
But in terms of magic, he was disqualified

The background is set, and Arc’s goal draws near
Get back at the people who mocked his weak skills
Whether by training or cheats? That part is unclear
But who cares? It’s time for some self-insert thrills

Web Novel: https://ncode.syosetu.com/n6362fe/ (Raw)

Soul calibur manga omake explaning the gameplay and features of soul calibur 4. From the special edition of the game.

Unable to sleep or find satisfaction in his daily life, Yamori Kou begins exploring the city at night, where he meets a strange girl who offers to help his insomnia by sleeping beside him.

Note: Winner of the 68th Shogakukan Manga Awards for best shounen manga (alongside Ao no Orchestra).

In war, men become beasts. War makes gods out of beasts. When war ends... where do the gods go? Where can they rest their weary heads?

Wolves walk the forest of despair, the wasteland of lamentation, the sea of bitterness, in the time of dark and light. To kill those that were once their friends.

A man who had always been fascinated by magic, even at the age of 30, suddenly died and woke up in a different world. He was named Shion and hoped to find that magic existed in this new world, but soon discovered that it did not.

Feeling depressed and purposeless, he eventually stumbled upon the existence of magical power after a certain incident.

“I have an idea. If there’s no magic, then I’ll just have to create it myself,” he thought.

With that determination, he began to study magic every day. Through encounters with enemies that could only be defeated with magic and a widespread disease that could only be cured with magic, he became a hero who saved the world. This was the story of a simple magic enthusiast who was thrown around by fate but overcame it all with the power of magic and an unyielding fighting spirit. He eventually spread the use of magic to the people.

A merchant by the name of Okuda Keigo put everything into his work, day and night, until one day he won a lottery of 1 billion yen! With his money worries solved for life, he moved to the countryside far away from civilization to live the slow life. Then, suddenly he was transported to another world, along with his chicken coop?! In a world where he’s unable to communicate with others, you think his merchant skills will help him?! A man in his forties who hates people retired to another world. The story of his slow life has begun!

A material artist, claiming himself to be a "murderer" is defeated by a suicide attack in battle and is reborn as a first born child to a local lord. Having a fresh start, a warm family and a little sister to protect - he decides to become a better person in his new life.

The kingdom's hero, Ortus (♂), dies in battle after failing to fulfil a promise he made to protect the kingdom for the rest of his life. When he wakes up, he finds that he has been reincarnated as Seretina, the duke's daughter!

Even though she's a lovely, beautiful girl, she's still the same and determined to become a knight to protect her country in this life. However, besides being sickly and fragile, she is also faced with the harsh fate of a lady. She has to learn manners from her horrible mother, marry a man she doesn't want to marry, and many other challenges that will keep her from becoming a knight.

Then, on the way to the royal castle, a demon attack reveals her true power that no one knows about! A new heroine is born, with the strength to slay demons with a single blow, and the peerless beauty to captivate even people in high society!
She’s pretty on the outside, but fearless on the inside!
The chivalric, heroic fantasy of a feeble young woman begins!

Hajime has lived in fear of the monsters lurking in the shadows that only he can see. But after meeting a mysterious shadow girl who pledges to help him face his fears, he's dragged into the secret world of ninjas.

Baibalon, a territory considered the worst in the country. A place where those who have no home left flee to, filled with criminals, heretics, sick people and demihumans.

Taking over the family as the next Lord, the young Rize Baibalon will try his best to stay alive in this god-forsaken place, not worrying if what he does to achieve that goal is going against the very founding doctrine of the country.

With little common sense and recovery magic, can he accomplish his peace? Or will the misunderstandings continue to pile up and will he be branded as a Rebel?

Hinoharu Kota gets stronger each time he gets summoned to another world as a summoned beast. A troubled middle-aged office worker was summoned as a summon beast to another world. Although he is a man without any special characteristics, he continues to be a summoned beast for a female knight. A different world love adventure fantasy that depicts a hero who obtains a new skill every time he is summoned between the two worlds that he exists in.

An old man was laid off from his job at a black company. While wallowing in the depths of his despair, he encounters a mysterious stone that sends him to another world filled with magic and alchemy. The man finds himself reincarnated as Hiyo — the youngest daughter of the demon lord.

Hiyo attempts to make a dazzling fresh start in life by utilizing both her newfound magical powers and prior tribulations as a salaryman, however, the demon world is in the midst of a battle for succession. In order to change herself, the ex-old man is determined to defy the demon lord and her siblings. And after meeting Ernest, a hero with his own circumstances, they work together to take over the throne of the demon lord — for both the sake of peace and to search for a place to belong. The two of them defy destiny, even if it means destroying the world to do so...

Makoto Kubota wandered through life, not taking things too seriously or looking too deep within himself. His job as the head of the Izumo Group's youth gang kept him pleasantly occupied with yakuza wars, mahjong and assassinations... Until the day he stumbled upon a strange drug called Wild Adapter that produces bizarre side-effects--including death. Forever changed, Kubota becomes entangled with a drifter named Minoru Tokito, and the two form an unlikely companionship that draws them deeper into the mystery of Wild Adapter...

The world is filled with cruel scum, ranging from petty thieves to sociopath maniacs. When a vile low-life inflicts pain and suffering on innocent victims, sometimes their anger becomes overwhelming. Whether their damage stems from romance, finance, reputation or even a death, these victims feel trapped in their own skins and lives.

Those victims who can't stand it anymore call for the mysterious woman, owner of Uramiya, the "Revenge Shop".

The Uramiya specializes in executing revenge schemes. The vengeance their customers request on their bitterly resented enemies could range from financially destroying them, to smearing their social reputation, to even taking their lives. As long as you pay a fair price, the Uramiya will guarantee you get the revenge you deserve.

The setting of Fate/Apocrypha is a parallel world to Fate/stay night where the Greater Grail was removed from Fuyuki after the Third Holy Grail War and disappeared for many years. Around the 2000s, around the same time as the Fifth Holy Grail War would have happened, the group that plundered the Grail, Yggdmillennia, openly declares their secession from the Mage's Association and that they are in possession of the Grail. The Association dispatches fifty magi to retrieve it, but all but one are instantly slaughtered by Lancer of Black. The one remaining manages to activate the reserve system of the Greater Grail, allowing for the summoning of fourteen Servants in total.