Do Kyunwoo is the black sheep of his renowned swordsman family. He cannot even catch a rabbit on his own. On his first day of fifth grade, he meets a tranfer student and recalls his past life.

He had reincarnated into the world of a game he used to play called [Brave Hearts]. He was already frustrated that he had reincarnated as a loser, but on top of that, the transfer student is an intermediate/mid-tier boss who will destroy the world!

“Why are you being so nice to me?”

“Because I want to be friends with you.”

Do Kyunwoo’s plan is to become friends with the transfer student in order to prevent the end of the world!

In order to survive in this new world and to reach an ending he desires.
He becomes best friends with the mid level boss.

“…Student, how long have you been here now?”

Theodore Miller is a failing student who has not graduated from the academy for three years. A bright mind and strong will alone could not overcome the wall of talent, so his unfortunate reality of not being a magician continued.

After days of despair and uncountable sighs, a new turning point comes…

‘Gluttony’, a magic book that greedily consumes knowledge and makes the said knowledge the power of its master, comes across Theodore’s hands.
If he gets his hands on any book, any magic in it becomes his. Now, senior graduation is all but a guaranteed pass! No, world conquest is just a matter of time, too?!

“Yes, I will eat them all!”

Did someone say that hard work and perseverance alone are not enough? Well, they’re wrong! Everything has its time! A 1% opportunity, which is also annoying sometimes, came to find its way to a 99% purely hardworking magician!

From 87 Percent Translation:

Reiji Saeki living in the north eastern countryside town lost his life in an accident during summer vacation. .....But before he knew it, a mysterious ball of light exist in front of his eyes in a world of whiteness. Being a magician from a parallel world, that ball of light is looking for someone qualified to inherit the magic they had created to prevent it from being lost. Reiji who took on that suggestion lives in the parallel world, Elgin, with a new body and powerful magical power.

An average student got summoned to another world and granted the strongest job. 
No, not Hero, not Sage either. 

It's Inspector.
With ability to inspect anything and gather information accurately, surely this is the strongest job there is!

It has already been two years since I possessed a character in this insanely difficult game. In order to go back to Earth, I have no choice but to stop the downfall of this world and reach the ending of this game. [You have collected the body of a “pathetic soldier.” Inheriting abilities.] [Inherited rewards: Stamina +1, Proficiency +1, Dehaman’s Armored Combat (D)] I will see through to the end of this game no matter what!

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.

Born as the illegitimate second son of Loxollum’s king, Iblonde is sacrificed by his pagan mother to ensure that one day, he sits on the noblest seat in the kingdom. A few years later, Iblonde has started a new life as Abel, a serf of a baron’s domain. Aside from his tragic past, Abel harbors many secrets, including the fact that he is actually a girl. But the greatest secret of all is that Abel’s resurrected body is now occupied by Belial, the seventh king of hell, who has come to slowly plague the land...

Seto is an ex-boy soldier who was expelled from the party of heroes on his journey because of his ruthless and incomparable fighting style. The former leader of the Demon King's army, Satis, was kicked out after a series of failures.

The two "former" enemies decide to travel together to find a second life. Sometimes they go to hot springs, sometimes they sleep in the same bed, sometimes they are attacked by demons. But what do they find at the end of their journey when they lose their place in the world?

The road story of the (former) brave boy soldier and (former) demon lord's army leader's "rebirth"!

Web Novel: https://ncode.syosetu.com/n1997fe

One day, in front of my eyes appeared a silver-haired Goddess.

[Heaven-defying Star. The existence that goes against destiny. The one and only savior of a world that was destined to meet its end—]
What kind of bullsh*t is this woman spouting?

[You must be a regressor.]
“…What?”

No, I’m not.

After saving the princesses Rio is given a scholarship to the Royal Academy, a school for the rich and powerful. Being a poor orphan in a school full of nobles turns out to be an extremely detestable situation to be in.

Ever since a meteorite fell, the world has become strange. Two young immortals, Mithia and Youthanasia, are traveling through this crazy world in hopes of finding a way to die.

Aix is a 19-year-old E-Rank adventurer. He is a “prodigy” mage that solely specializes in ‘Effect Duration Extension’. He has spent the last five years working like a slave around the clock throughout the week. When he finally collapses from exhaustion and wakes up on his doorstep, he finally comes to terms with himself. "I'm going to quit this job!" After quitting his job as an adventurer, Aix announced that he would no longer work. The people who had been enjoying the benefits of the unusually long duration novice magic cause of Aix, panicked when they realized that there was no one to replace him, but it was too late. He smiled and refused all the threats and attempts to coerce him. "I will NEVER work again!"

The new life of a novice mage who has been told he won't work begins now!

What happens when the hero arrives at the castle of the general of the demons and knows that they wouldn't be able to defeat it? She cries and is comforted by the general of demons himself!

The Mystic Lunar Dance Troupe took in Jin Sohan as an orphan, and he spent his childhood with them.

But one day, one of the four great demons, the Venom Demon, discovered that he was special and kidnapped him.

After all kinds of test, he decided to raise him as his disciple.

Ten years later, Jin Sohan tried to look for traces of the Mystic Lunar Dance Troupe, but the Sword Dance Troupe had already been destroyed at the hands of the Unorthodox Faction that’s now ruling over his hometown.

Loco is a novice adventurer who begins his journey to save his sister Natty, who is cursed by a monster into an eternal slumber.

At an adventurer's guild, he meets Taiga, who was given extraordinary abilities when he was reincarnated from another world! He also meets Souya and Mia, who were also reincarnated from another world and have cheat abilities, but something happens that shocks even them!

An entertaining and poignant otherworldly fantasy featuring a party of a novice adventurer, Loco, and three reincarnated characters from another world!

Toma was transported to another world due to an accident caused by a female circle crusher. So, he made friends in the new world and rebuilt his life as an adventurer. However, then, another girl joined his party... Will his life collapse once again because of another circle crusher who also exists in this new world!?

A spin-off series about the life of popular character Roxy from the popular series "Mushoku Tensei".

Having discovered that she has been born without her race's racial ability, Roxy went through a childhood of isolation, but her chance meeting with a magician broadened her horizons. What awaited the young girl that, looking for freedom, left her hometown was...!

In 1990 (previously 1986, but Kurumada moved dates), in Elysion; the five Bronze Saints Seiya, Hyōga, Shun, Shiryū and Ikki, having wreaked havoc in the Underworld's army and succeeding in resurrecting the God Cloths, engage the god Hades in a final duel to the death.

During the battle, Hades remembers that he has seen Seiya's face before and comes to the conclusion that he faced him before. He thus starts reminiscing about his previous host body, and the story starts 247 years prior, in the 18th century.

The protagonist, the Pegasus Saint of this era, is an orphan who is best friends with a boy named Alone, the host of Hades. Former Bronze Saints Dohko and Sion, two prominent characters in Kurumada's original manga as the sole survivors of the holy war of that century, have just been promoted to Gold Saints and eventually the two duos meet.

I died while I was reading hate comments on my novel.

I was already in shock over my death, but some 'Grim Reaper' appeared and told me that being a bad writer was a sin. To atone and make it into heaven, I was told I needed to survive past the ending in one of my novels.

And so, I entered the novel 'The Demon King is Dead'...

"Damn it all!! Why did this have to happen to me?!"

By all misfortune, the character I possesed was the Demon Prince, a character with no combat abilities—who dies at the very start of the story!!

I don’t want to work. Like at all. But I don’t have a choice. On earth where Humans, Elves, Orcs, Trolls, Dragons, and Alien immigrants live, it is an endless repetition of incidents. This is the story of a man that’s had to work in secrecy for 800 years because he’ll die if he doesn’t work.