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.

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.

In a dilapidated castle, Astaroth awoke as a Demon King.
With his ‘wisdom from his past life,’ he would rule over his lands as a thorough ‘realist.’

“Demon King, why are you attacking the level 1 Heroes?”
“Defeat them before they become stronger. That is called strategy.”

“Demon King, why are you sending fake money to the enemy country?”
“To bring chaos to their economy, so they will self-destruct.”

“The werewolf troops have attacked. Should we use silver bullets?”
“Not bullets, shoot them with canons.”

And like that, Astaroth ‘reformed’ the old tendencies.
He became a lord who was loved by the people and his subordinates, and he would go on to be called the most powerful Demon King in history.

Unknown monsters have appeared on Earth, alongside ‘Superhumans’ who appear to dispatch them. With these mysterious monsters and superhumans, a new ‘Superhuman Era’ begins!

Kakyu, a former Japanese who was reincarnated as a low-level demon in hell, has acquired unparalleled strength over two thousand years. However, unexpectedly, he is exiled to another “different world,” liberated from the harsh underworld.

Kakyu, who was enjoying his dream slow life, witnesses the village he owes everything to being attacked. Despite rushing to the scene, the village is annihilated.

Picking up the only surviving baby, Alus, Kakyu resolves to raise Alus to become the happiest person in the world to repay the debt…!?

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!

Shinobu Iijima lost his life along with his beloved sister and prickly stepfather in a mysterious disaster.
When he woke up, he was reborn in the world of the game he had been playing.
Shinobu was in despair as his stepfather erased his game data and he had to start from the tutorial, but he learned that his sister would soon be reincarnated into this world as well.
In order to stop his father-in-law, a top player who was after his sister's body, he embarks on a painful path to become the strongest...!

The youngest A-rank adventurer, child prodigy Kaiser, finds three babies who were the only survivor of a destroyed village. Then he decided to give up his job as an adventurer and raise them. Over time, the girls grow brightly and show exceptional talents in fencing, magic and management. However, these girls also seem to love their father, Kaiser!

Orignal webnovel: https://ncode.syosetu.com/n2223fo/

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

Ken Takakura, a boy who is an occult fanatic who doesn't believe in ghosts, and Momo Ayase, a girl who doesn't believe in aliens, encounter overwhelming strangeness that transcends their mutual understanding...! An occult coming-of-age story!

After winning the battle of Katze Plains and founding the Sorcerer Kingdom of Ainz, they aim for a utopia of perpetual continuity and prosperity, a world where many races kneel before Ainz. As the first step toward achieving this goal, Ainz heads to the Empire to strengthen the Adventurer’s Guild and incorporate it into the state. Behind the scenes, the nations of the world are beginning to stir with their own agendas for the Sorcerer Kingdom...! Ainz's high road, once again!

Third son of a "beggar noble" Nore lost his job and was at a loss. But as he was contemplating whether to become an adventurer fortune struck.

A Hidden Dungeon that no one knows how to get enter. A legendary place full of hidden things like extremely rare magical beasts, magic tools for gaining power and items that would be scarce all over the world. That's the kind of entrance that was opened.

"Without telling anyone about this place I'll secretly become the strongest."

This world is harsh to nobles of poverty. Without authority of honor, if I could at least acquire power――

Being reincarnated in a cultivation world, Han Jue realizes that he can live his life like a video game. He can reroll his cultivation potential and connate providence.
So, he spends 11 years rerolling for a good one…
[Unparalleled: Immortal beauty, top-notch charm]
[Destined Sword fanatic: Top-notch Sword Dao aptitude, top-notch Sword Dao comprehension]
[Unparalleled Movement Technique: Top-notch movement technique aptitude]
[Descendant of the Immortal Emperor: You will receive an unparalleled cultivation technique and 1,000 superior-grade spirit stones]
In pursuit of longevity, Han Jue decides to cultivate in a low-profile manner.
A thousand years later, generations of cultivators have become history.
That is when beings of the fairyland start cleansing the mortal world. Han Jue can no longer hide and has no choice but to take action.
Then he realizes, that deities and gods aren’t that powerful after all!

Combining reality with a gaming world where ferocious beasts roam freely, filled with numerous mysteries and dungeons. In order to defend against the onslaught of these beasts, everyone undergoes class transfers and crazily levels up. On the day of his transfer, Lu Fan becomes a hidden class – Dragon Tamer. However, due to the immense strength of dragons, it is deemed impossible for anyone to tame them, earning Dragon Tamer the reputation of being the most useless class. Fortunately, he awakens the Super Treasure Map System. As Lu Fan, with his mighty dragon, sweeps through everything, the entire world trembles.

Kaya-chan is an infamous problem child in kindergarten. However, when Chie-sensei is assigned to look after her, she finds out that Kaya has an ability... Presenting to you, the strongest horror action series set in a kindergarten!!

As the red-headed princess of Kouka, Yona lived the ideal, though sheltered, life within the walls of Hiryuu (Red Dragon) Castle. Doted on by her pacifist and cowardly father, King Il, and protected by her childhood friend/bodyguard, Son Hak of the Wind Tribe, (who has loved her since they were kids, but keeps his feelings in check). She cherishes the time she spends with the "love-of-her-life" (and older cousin), Soo-won. Though, on the night of her 16th birthday, everything changes when she witnessed someone close to her, murder her father.

“Yup! Just as slow as I thought.”

After retiring from public fighting and getting fired from underground fighting, 27 year old Tenma Nozomi's zest for life is gradually dwindling away. It's hard to be at the bottom with nowhere to go, and that's exactly where she and her two friends are. However, Nozomi hits upon an idea that may just solve all of their problems: they could make their own underground fighting circuit for women, and tap into an underexplored market. As good as that sounds, her insistence on including the unknown quantity Hongou Hina may prove to be more than she bargained for...

The master spy codenamed has spent his days on undercover missions, all for the dream of a better world. But one day, he receives a particularly difficult new order from command. For his mission, he must form a temporary family and start a new life?! A Spy/Action/Comedy about a one-of-a-kind family!

Won the Tsugi ni Kuru Manga Award 2019 in the web manga category.

Stowing himself away on a slave ship, Julian sets sail for the great continent with a hundred slaves, all yearning for freedom, until...?! Embark on a groundbreaking journey through this action-packed dark fantasy saga!!

300 years ago, Martial God Hyun-oh Kim defeated Barche, the boss of the tower of destruction, and prevented the end of the world. Kim Hyun-oh, should have died suffering the same fate as the tower of destruction. However, after 300 years, he is reborn as the 17-year-old Kim Joo-hyuk. In the midst, he finds out that the “Constellations”, that were created during his absence, are his disciples from 300 years ago and sets on a journey to find them.