Regret is the bane of old men. When aging Alliance Lord Hajin Cheon of the Grand Martial Alliance reflects on his immense legacy, he finds that he recalls little of his deeds or even the lives of his closest advisors. Stricken by a mysterious ailment, Hajin suddenly passes away only to wake up in the body of Ridan Byeok, heir to the Byeok Clan of swordsmen. The only problem is, Ridan is a well-known wastrel, the polar opposite of the virtuous and stern Hajin. Righting the wrongs of his predecessor, Hajin begins to uncover the truth behind his death…

The worst student of Westrod Academy, the disgrace of the Blake House.
A new soul enters the lifeless body of Frey Blake, the boy who couldn’t handle his painful life and chose death instead.

“What’s with this body?
I’ll have to check every little detail of it.”

The Great Mage Lucas Traumen.

He earned his chance at revenge by gaining the flesh and bones of Frey Blake the disgrace!

And now begins the interesting adventure of the Great Mage who returned after 4000 years!

Ganghyeok is ruined. His gym business is failing and there's no way he can pay off his debts. But one night, while reading his favorite author's latest webnovel, he gets sucked into a world of martial arts fantasy and wakes up as a child monk in the Shaolin temple. There, he must apply his knowledge of modern fitness to survive their strict training, juggle the friends and enemies he makes along the way, and find a way to get back home.

Cyan Vert, illegitimate son of the Duke and the empire's greatest assassin, is betrayed by the righteous brother whose shadow he's always lived in. But just before the fatal blow strikes his throat, Cyan awakes to find he's just a boy again. The young lord has been reborn, and this time, he's not going to live in anyone's shadow!

(Source: WEBTOON)

He was the hound of the Baskerville family: Vikir.

Yet his loyalty was rewarded by the blade of a guillotine dirtied by slander.

“I will never live the life of a hound slaughtered after the rabbit is caught.”

In place of death, an unexpected opportunity awaits him.

Vicir’s eyes glowed red as he sharpened his canines in the dark.

“Just you wait, Hugo. I will rip out your throat this time.”

It’s time for the hound to exact bloody revenge on his owner.

This is a story about the growth of a cutely dumb fox.

With his dantian shattering from a ki rampage, So WoonHwi was cast aside by his family.
After that, he was kidnapped by the Blood Cult, where he spent his life as a third-rate spy.

One day, he’s killed after being used to find the legendary Secret Records of the Sword Sage.
But instead of really dying, he wakes up 10 years in the past on the day he was kidnapped by the Blood Cult, along with the power to hear the voices of swords.

Zeke Draker, the first direct descendant of the Dragon Slayer family to fail awakening. Possessing the talent of a healer instead of a swordsman, he was cast out by his family. Struggling desperately to grow stronger, Zeke met a tragic end.

At the moment of his death, mysterious words appeared before his eyes:

[The soul of an Elder Dragon is engraved upon the will of the one who persists.]

[An irreversible, promised power is being activated.]

When he regained consciousness, he found himself back in the Dragon Slayer family that had abandoned him, 20 years in the past.

"If I can become strong, I’ll make use of anything and everything."

Armed with a newfound, immortal power, the legend of a Dragon Slayer in a class of his own begins.

From The Company:
Gods with everlasting lives. Sura who possess unrivaled power. And humans, caught helplessly in-between.
When Kubera’s peaceful village meets its fiery end, a mysterious magician named Asha comes to her rescue. Together they begin on a journey in search of answers and revenge. Meanwhile across the realms, a web of entwined fates is growing tighter. One by one the other players of the game will emerge, each with their own agenda to pursue.
At the center of this maelstrom stands Kubera, the girl with a god's name. Will this sixteen-year-old be the salvation of the world or its destruction?

Nari who just wants to blend in ends up forming a squad with the three prettiest girls on her first day of high school.

Gang-in Na wakes up in the year 2024 in the middle of South Korea with no memory of where or who he is. Upon hearing a voice that sounds strangely familiar, he comes face to face with a robot named ACE (Autonomous Combat Entity), who informs him that he was once part of the Earth Federation Forces in the year 2082 and possesses a wide array of skills. Gang-in decides to join forces with ACE to recover his lost memories and adapt to life on Earth, but the two look to be in for a bumpy ride.

The ruthless criminal “Great,” exiled to space for his countless crimes, is banished to the past alongside the King of the Universe, “Rohollah,” after their encounter in space. Great attempts to right the numerous wrongs he committed in the past to try and rewrite a better future…

After being betrayed and killed by the organization he worked at, the infamous assassin ‘Bi-Gwang’ reincarnates as ‘Kim Gyeongsoo’, a police officer. He vows to take revenge on ‘Hwaguksa’, the organization of killers that has betrayed him.

If the Grim Reaper calls your name three times, you will be taken to the underworld.

"Hyeokyeon Mugang."
"Hyeokyeon Mugang."
"Hyeokyeon Mu..."

You little shit! I want to live longer! Get out of here!

I desperately swallowed the Herb of Immortality, and to my surprise, I actually lived! When I finally opened my eyes, thinking it was all a dream... I was surrounded by a bunch of old guys?! I asked where am, and—the Shamans' Mountain?!!!!!!!!

Somehow, I possessed the body of a pitiful errand boy... this is nuts!

I... I am... I am the strongest of the strong, the head of the Sa Clan, Hyeokyeon Mugang!!! Why am I now part of a clan of Shamans?!

Well, since I'm here, I might as well become the best disciple I can. The trashy master's ruthless, no-holds-barred, immortal martial arts story "Path of the Shaman" begins!
Links:
Original Webnovel: https://page.kakao.com/home?seriesId=52882308

Webtoon Trailer: https://www.youtube.com/watch?v=b-xR7KBYvhk

The undefeated spear knight. A shining star from a Duchy household that completely shattered the common logic that a knight must use a sword. The great hero that put an end to the empire’s long civil war. His name was ‘Joshua Sanders’. The man known as the Legendary Spear of the Emperor was coughing up blood. By the hands of none other than his lord, Emperor Caesar… “Caesar, don’t think that this will be the end!!” Staring death in the face with a magic explosion circle in front of him, the spear ‘Lukia’ that has been with him for decades started shining… This familiar place… Is it the stable I used to live in as a kid? I even became younger! Lukia, what are you? Joshua has returned to his childhood! And now the tale of his epic vengeance commences!

[Adapted from one of the old top novels of all time!]
God created the Abyss to escape his boredom. Trapped in the hellish Abyss, humanity was on the path to the apocalypse… “Is it over for us… now…” On the brink of humanity’s annihilation, the four strongest survivors tried to prevent it by traveling back in time to the point just before humanity was pulled into the Abyss. But only one of them could go back to the past. “What’s there to think about? Isn’t it already decided who’s going? The strongest among us, Kang Hansoo.” This is the story of the life of the legendary powerhouse, Kang Hansoo, who returned to save humanity from its doom. Will he be able to save everyone?

The betrayed old man killer regresses! But… no one recognizes him?! “Then I’m the most powerful!”

Ronan lived a wasteful life filled with regrets. A second chance befalls him at the end of his futile life. He went back to the time when he was a ten-year-old child! For the people who sacrificed themselves for him, he becomes determined to live a new life.

The genius lawyer Noh HyungJin's justice-executing returner fantasy!

Valedictorian of his University, perfect score on the Bar Exam, and even a 95% case win rate. Noh HyungJin was a so-called successful lawyer. While he was fighting against evil, higher powers to make South Korea a just and fair land, he was ruthlessly murdered by National Intelligence Service agents.

"He shouldn't have died..."

Noh HyungJin was a man sent by Emperor YeomRa to fix corruption on Earth! However, after ending up in hell without having been able to achieve anything, Emperor YeomRa returns Noh HyungJin back in time.

"I should at least give him power so he can protect himself." What is this 'power' given to him by Emperor YeomRa? Will Noh HyungJin be able to change his future as well as the future of South Korea?!

Im Dajun is a high school student who gets bullied at school every day. He came across an interview on TV just when he was on the verge of giving up on life. It was with a murderer who killed the classmates that bullied him. Dajun becomes inspired by what he saw and decides to take revenge as well.

His revenge was successful. However, his life steered into an undesired direction. Im Dajun, leaving school, ends up joining a strange Runaway Fam.

The young runaway, Im Dajun, no longer suffers from the bullies at his school. Instead, he now must survive against even more vicious thugs on the streets.