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.

The world's only one best CEO, Han Yoo Hyun. He leaves everything behind and relives his life!

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…!?

120 years after the Emperor's death, the Emperor's messenger and a Former member of the hero's party, Benrira, awakens.

Having lost her beloved student to the corrupt fatherland, she decides to deliver the Emperor's final message.

"I am the messenger who delivers the Emperor's words. Heed the will of the First Emperor!"

An unknown skill turns into unlimited power with divine knowledge [Internet]!

"To manifest an SSS rank with the weakest skill is a disgrace!"

Rona is a girl who was expelled from her home due to her lack of money, food, and power. Lost and hopeless, she suddenly hears the words...

"Would you like some guidance?"

She discovers how to utilize her unique SSS rank skill: [Internet], which she alone possesses. The true nature of this skill is the ability to access this world's 'guide sites' - an extraordinary cheat skill! Endless production of valuable items! Acquiring ultra-rare equipment! Thanks to her skill, she can do as she pleases...!

Higure Oma wakes up at Sasaragieki, a station he's never seen before. There, he meets missing girl Inami Mayura. But before he can react, a fierce gunfight erupts. Trapped in the chaos, he realises — he's entered the deadly world, Batsuikai.

Survival is no longer a choice. It's a battle.

The story follows lawman Elmore Evans, who despite being one of the most amazing gunslingers in the West can't get rid of his bad luck in his romantic life.

10 years since he reincarnated in hell…Takamichi is troubled. With the “Incubus” power unlocking further to become stronger by having sex with women but his growth peaked. “I’ll move to a new area, wait for me beautiful women of the new world!” Sexy & violent pretty girl battle fantasy!

During the school trip Touka and his classmates are summoned to another world.
However, Touka was the only one with the lowest rank: E-rank — an extremely low status compared to his classmates. Thus, the former mob-character and abandoned hero, will absolutely become the strongest devil as he advances and strikes back.

High school freshman Eugene Korekishi is an honor student with zero psychic powers who does not believe in ghosts! However, his high school life takes an unexpected turn when he meets a maverick boy named Mogari Shishikuno, who exorcises ghosts by eating them!

A classic kaijū manga by the author of BTOOOM!

Follow JSDF officers Yamato Yoshikazu and Sakimori Konoe as they face off against monsters of unknown origin that infest the troubled, disputed waters of the East Asian sea and have humans as a preferential prey!

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

The manga will cover the story from the Goblin Slayer novel's 12th volume, and will focus on the adventurers' development as they live their everyday life.

There was a mage called ‘The Lone Demon King’ at the frontier.
He was just a creature that never grew old, but he was loved by the villagers as something of a guardian deity.
However, he was destroyed by a magic organization that sees his existence as dangerous.
200 years later, he is reincarnated as the second son of an aristocrat and obtains the strongest magic power.
“Let’s pretend to be a human this time”
However, being a human lover, he didn’t particularly think of revenge and has decided to pretend to be human in this life.
In his past life, he was the guardian deity of a region, and in this life, he’s a local aristocrat, but he does not know common sense. He doesn’t know how to take it easy.
As the second son of an aristocrat, he is loved by his family and friends, and while he is regarded as a master of magic in the magic guild, he becomes an ‘Immortal Mage’ behind the scenes.

Webnovel Raw: https://ncode.syosetu.com/n9450fl/

The story is loosely based on the Three Kingdoms period, using both real and original characters and events from the historical period in Chinese history and folklore of the Romance of the Three Kingdoms.

In ancient times, there existed the land of Wa, split between the reign of the gods and the world of man. It was an age when gods and men existed together.

Miyo, an orphan girl, lived in fear of death as the designated sacrifice for the ruler of her village, Kippuuson-no-Mikoto-no-Kami. However, her fate changed as she encountered En no Ozuno, a monk with supernatural abilities capable of conversing with the gods.

An orphan girl, a great monk, and a demon boy. Follow their adventure as they encounter the gods, traveling through even dimension and time.

One day, out of the blue, he falls into hell. All he has with him is his desire to live and predatory powers. From the thousandth hell to the nine thousandth, he‘s devoured tens and hundreds of thousands of demons, and even the seven archdukes bowed down to him. “Why do you wish to go back? Your Highness already has everything in hell.“ “Everything, my ass.“ There’s nothing to eat or enjoy here! Hell’s nothing but desolate land full of terrible demons! “I will return.“ After ten thousand long years, he finally returns to Earth.

“The Hero defeated the Demon King in the war of men against demons…” Those kinds of stories are a thing of the past. Nowadays, adventurers, demons, Heroes, Demon Kings, and so on are all occupations that no longer involve putting one’s life on the line. Peace has returned to the world, and dungeon exploration has now become a form of entertainment. Adventurers and monsters now all fight using clones they’ve created with magic in an extremely popular form of dungeon clearing where nobody dies. The footage of the dungeon getting cleared gets broadcasted all across the continent, and I’m a member of a Hero’s party that was ranked the 4th most popular in the world… but not anymore. Parties had a limitation of 5 members, and I was told that an unpopular job like Black Sorcerer would only get in the way of getting to 3rd place or beyond.

Now that I became unemployed, I was forced to find another party but I just couldn’t find one. One day, I encountered a beautiful blonde red-eyed woman who told me she had a job for me. After being so touched from having someone recognize my abilities far more than my past comrades, I ended up agreeing to take an interview without asking for the details. When I arrived at my destination, I was at the world’s hardest dungeon where no party has ever reached the final area, the Demon King Castle, where the Big Four and the Demon King were waiting for me. This is the story of a Black Sorcerer that was kicked out of a Hero’s party and joined the side of the Demon King Army to repel the Heroes. (Source: Novelupdates)

Or
Please read the title again.

Artist's Twitter (NSFW): https://twitter.com/kana_kkn
Orignal webnovel: https://ncode.syosetu.com/n4836fm/

Sano Yuji, a black company employee, is summoned to another world while finishing his work at home. His profession in the other world, a Monster Tamer, is considered a job that makes it difficult to become an adventurer. However, thanks to some slimes he met, which read several magical books, he gained magical powers and the second profession, Sage.
Yuji acquired overwhelming power, but is he conscience of his strength? Blindly becoming unparalleled and strongest in the world!

A man was about to commit suicide and decides to search for a way to die in the internet, but then he found an odd site that asked a lot of questions and had a point based system that allows you to create skills and abilities for a character. He took interest in it and when he finished setting his character he was asked "You will now be transported to a world with the settings you choose, coming back is not possible, do you still accept?" Then without thinking much of it he pressed YES and found himself in another world with the skills and abilities he chose to have.