Hunter type / System-based

The very last moment before the novel was about the end... The strongest villain met a pitiful fate. But that wasn't the end. "So, this is how I die." I, who was once the author, woke up as the fox-eyed villain who was never once understood.
A fallen family. A life thrown away for revenge. A future sealed in tragedy. I'm going to rewrite it all.
ITS COOL, HE'S GETTING STRONGER BIT BY BIT

Misato Kyoichiro, the leader of the strongest group of adventurers, the "Golden Seekers," was betrayed by his comrades and left to die.
"I won't just die like this!!"
In his final moments, he activated a reincarnation spell. Kyoichiro successfully reincarnated twenty years later as a student named Asai Kyosuke, a wielder of the "Void" attribute.
SEEMS COOL, AND THE MC HAS AN OP POWER

The launch of the virtual reality game Warlord in the year 2035 changed the world.
Ahn Jaehyun was one of many who sought to change his fate within it.
But the price of devoting his entire life to the game was betrayal by the very comrades he trusted the most.
Having lost everything because of that betrayal, Jaehyun is given one more chance to start over.
IM LIKING IT, THE MC IS COOL

“It isn’t the strongest who survives. The one who survives is the strongest.”
After being discharged from the military, Jin Seowoon did nothing but play games like a loser. One day, he was invited to the world of “Cloyd Survival,” which resembled a game he enjoyed.
In that world were masters of martial arts, kings from other worlds, and notorious killers…
I LIKE IT, BUT IS LITERALLY FORNITE

Theo, the young master of the powerful Ragnar family, worked tirelessly but lacked the talent to break the chains of his bloodline, ultimately being pushed out of the competition for the throne.
However, even as a powerless young master, his brothers sought to eliminate him, and he was betrayed by his own mentor. In the end, Theo lost everything and faced his death.
In his final moments, filled with regret over all his life choices, the unbelievable happened: he experienced a ‘rebirth.
SO COOL

After learning that he can make money by clearing a full-dive VR game called Prophecy Online, Ray Endo bets his life on the game in hopes of striking it rich. When he successfully clears the game, it suddenly announces its shutdown. However, days later, the world is on the brink of destruction by the same monsters from Prophecy Online. As the only person who has cleared the game and knows its ins and outs, Ray decides to seize this opportunity
IS COOL, AND THE MC IS FUNNY

"I shall wait for you at the edge of the Abyss..."
That is what a mysterious man said to Sora Mukujima in one of his dreams.
Sora lived a modest life together with his parents, until one day, that peaceful life fell apart. A massive tower appeared. His brother, a soldier, was unreachable. And monsters began to attack suddenly.
When he was in a desperate situation, the man from his dream appeared before him.
And when he woke up next, he was in an unfamiliar place.
I LIKE IT

Lee Jin-ho, who cleared "Reset Life," an extremely difficult game that can only be cleared after witnessing all 99 of life's endings.
A BIT CONFUSING BUT I LIKE IT (in utoon there's more ch)

On the day Earth met its end, The level 1 Mana-Impaired Alchemist created the Philosopher’s Stone, a tool that makes anything possible as long as the equivalent exchange is met.
What he desires now is simple, to strike back at the cause of Earth’s destruction and the murderer of his younger bro, and to live a life free of being a mana-impaired nobody! He thought he’d ended his regret-filled life that day.
But when he opened his eyes, he found himself 11 years in the past!
I LIKE IT, MC IS COOL

Legendary hunter Tae Ihyun, known as the “Thunder Emperor,” decides to leave his overpowered life behind and become a web novel author.
However, his stories lack realism, so he goes undercover as an F-rank in the C-rank guild Gahwa Mansaseong to gather material.
Initially just research, he soon grows attached to the guild and its struggling hunters. As he experiences their hardships firsthand, he matures both as a person and a writer.
I LOVE IT; it's funny and also has a great plot behind it