[NO. 4212: 'Humanity' has failed the Demotion Match.]
[NO. 4212: ‘Humanity’ has been deemed useless. Beginning deletion.]

As Earth was being erased after their final game ended in failure, Martial Saint Sung JiHan managed to resist deletion and saw messages pop up in front of him.

[To think someone would be able to resist being erased.]
[Let's give him an opportunity to re-challenge.]
[Player 'Sung JiHan' is returning to the time of initial entry in The League.]

When he woke back up, he had regressed back in time. Given a second chance, he swore to himself to stop the fall of Korea and humanity and take flawless vengeance against those that ruined things in his original timeline.

Follow the journey of Korea's Martial Saint, Sung JiHan, as he struggles to prevent a future of destruction and ascends as the Martial God!

Thirteen years ago, suddenly the Villainous Army of evil appeared in their gigantic floating castle 10000 meters in the sky to invade Earth! The villainous army have reviving capabilities that make them immortal, making them a serious threat to humanity. To protect us against these invaders, the Divine Dragon Rangers, the Dragon Keepers, wield their miraculous powers and their weapons, Divine Tools, and continuously fight for our safety! The assault of the Villainous Army! The vigilance of the Dragon Keepers! Will they succeed in their conquest…? Find out in the action-packed superhero series of a lifetime!

From Haruba Negi, the creator of 5Toubun no Hanayome.

Humans were suddenly summoned to become “Walkers”, and they needed to clear the tower to save the world.
Then, the “Regression Stone” was discovered. Walkers could now “return” to the past. And slowly… everyone left.

Humanity’s last hope, “Carpe Diem”, was formed by people who refused to abandon the world.
But once the last Walker reached floor 100, he no longer knew what to believe.

This is the tale of the only man who didn’t regress, despite everyone else going back to the past.

In a world where humans sell and buy otherworldly species as slaves, the great mage Rifenhardt is treated like the Demon King for helping the otherworldly species.

A party of heroes arrive to bring down the Demon King! Rifenhardt succeeds in greatly injuring the heroes, but he faces death at the hands of... the Martial King Tesslon!

"Time and Space Regression Spell."

However, Rifenhardt miraculously manages to cast this last-resort spell and regresses to the past. But...

“Who are you?”

He awakens reincarnated in the body of the continent’s strongest physical warrior, Tesslon!

Now begins Rifenhardt's adventures as both a great mage and the physically strongest man to change the world!

Seiya Tonami, a company employee in his thirties, has a routine — spending his Friday nights quietly drinking alone at his favorite standing bar. But one day, after stepping in to help a university girl who was being hit on, his peaceful evenings start to change. From that day on, they begin sharing drinks side by side. They talk about little discoveries, light complaints, and everyday moments — nothing special, yet her smile beside him makes those Friday nights something to look forward to.

Professional wrestler Yamamoto Jingo just returned to Japan from a 5 year training trip in the US and Mexico, only to be greeted by his now defunct wrestling company: Yamato. He's come to find out that as soon as the president of the company passed away, the rival wrestling group "Teijitsu" took down Yamato. Jingo has now been forced to go seek revenge for the destruction of Yamato by challenging the Teijitsu president. One thing led to another, and now Jingo has been half-forced into working under Teijitsu as the new wrestler from Brazil: Agnes Kamen

High school freshman Nao Misumi has known Sena Ikuta, his older sister Rio’s best friend, since he was in elementary school. As a self-proclaimed “sister’s boy”, Nao has always found Sena’s over-familiarity incredibly annoying. Yet, despite being loud, airheaded, and having zero sense of personal space, he could never truly bring himself to hate her. She has always looked out for him just as much as she has for Rio.

She’s a total idiot, too carefree, and her sense of personal space is completely broken. To Nao, she’s supposed to be nothing more than a nuisance, and yet...

“At first, I hated her for sure. She was noisy, and always took the things I cherished. So why is it that now—?”

Even as he grumbles about her constantly calling him “Lil bro," he finds himself unable to leave her alone. How did this “annoying” fixture in his life become the one person he can’t look away from?

Kubo-kun tries to learn about romance for the sake of writing light novels, but he turns out to be the most tactless and clueless person ever!?

Shinichi Kudo is a high-school student who, by using observation and deduction, is good at solving mysteries. While investigating one, he is caught by the criminals that he was watching and forced to take an experimental drug. Leaving him for dead, the criminals disappear. Instead of killing him, however, the drug turns Shinichi into a little kid.
To preserve the illusion of his 'disappearance,' Shinichi adopts a new name based on his favorite author (Arthur Conan Doyle) and becomes Conan Edogawa. Ran, his (actually Shinichi's) childhood friend takes this little boy under her wing and brings him to her home.
Conan now lives at a detective agency run by Ran's father, but his mind is as keen as ever and he continues to solve mysteries... always allowing Ran's father to take all the credit.
As far as everyone's concerned, Conan is just a little kid anyway... even to Ran. This is *extremely* frustrating to Conan since nobody will listen to a 'little boy.' Despite this, Conan has a mission... to find the criminals who did this to him and get the antidote to that drug.

Note: Won the 46th Shogakukan Manga Award in the shōnen category in 2001.

Taking place after Clayman's defeat in the main story, he reawakens in the past retaining his memory of the events that led to his death.

Will Clayman be able to overturn his fate, and will it be for the better or worse?

Gone are the days of swordsmanship and chivalry. Now is the age of gunpowder and war. Our story has two players. The first is Orcsen, a unified nation with many demonic races, led by the oft-reviled orcs. And the second is Elfind, the kingdom ruled by the beautiful yet vainglorious elves. Dineru, chieftain of the dark elves, has been forced to flee her homeland from enemies she had once trusted as friends. In the midst of their forced diaspora, she has a fated encounter with the leader of Orcsen, the orc king Gustav...

If you're reincarnated in another world, you will be naked and alone in the forest. The only things you can rely on without magic or cheats is your wits and fists!

Author's Twitter: @yazin_uhouho: https://twitter.com/yazin_uhouho
Web Novel Raw: https://ncode.syosetu.com/n5771ei/
Alternate Raw: NicoNico: http://seiga.nicovideo.jp/comic/41841

Sakimori Kagami plays a VRMMORPG called Arch Earth Online. He is a veteran player with the name and appearance similar to an elderly bearded wizard from a certain book about a ring. One day he purchases an appearance change item as a last resort to spend expiring currency and gets the idea of choosing what he would want to look like if his character was ever a girl. Falling asleep should have suspended the game, but Kagami wakes up still online and feels the game has has gotten a bit more realistic. Did Arch Earth Online finally get a long-awaited update?

In an impoverished territory, to a poor aristocratic family, a single boy would be born. Destined to become the next feudal lord, this boy’s name was Pastry Mil Molten. Pastry, the possessor of a rare talent in his previous life, had a promising future as a confectioner.

Merciless thieves, rabid beasts, scheming nobles, a domain in drought, many hardships such as these will befall the boy.

Our handsome successor, armed with his ingenuity and love for sweets, will survive in this world of swords and magic.

With a smile on his face, aiming for a territory filled with happiness, the young Pastry‘s challenges begin.

The best sweets and the best story. A single boy’s journey to change the world. A royal sweet fantasy.

Kuzukake Shoutarou is a high school boy whose only family went missing while traveling. The ones who came to his rescue? The strongest stepmothers ever!? Housework and daily life taken care of down to the last detail!!

From PRISMS:
Wahhaman is a special robot soldier built ten thousand years ago by the Atlanteans. Found and dug up in present-day Toukyou, he doesn't remember anything, due to a nasty knock to the head he received at some point.

A reincarnated boy, Allen, gets granted by a goddess the cheat skill, "Restoration." Even though he can heal all and any injuries and illnesses, there aren't a lot of places where he can use that skill to the fullest, so he planned to "regenerate" the slaves he bought and lead a slow-paced life. But the healed slaves' cheats turned out so out of the ordinary that the crops they tend to and their living conditions turned for the better in a blink of an eye. The protagonist, Allen, who slowly but surely is robbed of opportunities to shine, tried to counter that with his modern knowledge, and yet, those talented slaves absorbed it all and brought success to any and all businesses. The protagonist is becoming irrelevant with each passing day?!

The count's daughter, Psyche, is loved by all. Psyche, who took everything from me. Psyche, who always gets what she wants. I wanted to be her, even if just for a day.

Now officially serialized!

At the beginning of the martial dao, abnormal beasts invaded the world. Humanity’s martials had to retreat in defeat time and time again. Lu Sheng transmigrates to that time, but in his dreams he enters a world 10 000 years later. The foundational body refining method from 10k years in the future is several thousand times more effective than the current one. Then there’s the breathing method, body refining pill formula, and sacred martial law from 10k years later… Despite developing martial arts for 10k years, humanity was annihilated! Their martial arts civilization reached the apex, and yet there was no one left to inherit it. Except Lu Sheng, he’s exactly that last spark of hope!

Born on the edge of the world, Turan spent his life as a simple shepherd — hiding a power he was told could destroy everything he loved.

He knew nothing of the wars, the noble houses, or the ancient bloodlines that shaped the land beyond his hills.

And honestly, he's grown a little tired of it.

Watching the world from a distance, never quite knowing what lay past the horizon — until a random encounter cracks the door open, and curiosity does the rest.

With nothing tying him down, Turan steps into a world he has never seen — and slowly, through his eyes, its beauty, its cruelty, and its secrets begin to unfold.