Strong MALE LEAD (≧▽≦) fantasy

Yeon-woo had a twin brother who disappeared five years ago. One day, a pocket watch left by his brother returned to his possession. Inside, he found a hidden diary in which was recorded “By the time you hear this, I guess I will be already dead….”

Reincarnated into a new world filled with magic and monsters, the king has a second chance to relive his life. Correcting the mistakes of his past will not be his only challenge, however. Underneath the peace and prosperity of the new world is an undercurrent threatening to destroy everything he has worked for, questioning his role and reason for being born again.

Jung-woo, who was reincarnated in the past and tried to conquer Murim, continued his conquest.
Because of Shin-Ryong, who is left in a reincarnation cycle along with him, he fails to conquer Murim.
In the end, even the fifth attempt fails and he is reincarnated into modern times. Reincarnating into the
modern world changes Jung-woo's passion and dream. He seeks a battle with a powerful enemy, but he's too
powerful for most.

This is a development that I know of.’ The moment he thought that, the world had been destroyed, and a new universe had unfolded. The new life of an ordinary reader begins within the world of the novel, a novel that he alone had finished

10 years ago, after “the Gate” that connected the real world with the monster world opened, some of the ordinary, everyday people received the power to hunt monsters within the Gate. They are known as "Hunters". However, not all Hunters are powerful. My name is Sung Jin-Woo, an E-rank Hunter. I'm someone who has to risk his life in the lowliest of dungeons, the "World's Weakest". Having no skills whatsoever to display, I barely earned the required money by fighting in low-leveled dungeons

A manhwa about Hinwu, a prosecutor who dies and meets a grim reaper that sends him back in time to when he was in high school

He awakens. For 820 years he has slumbered with no knowledge of mankind's advancements and scientific achievments. The land which he once knew has become an unfamiliar place with new technologies, attitudes, and lifestyles.
Cadis Etrama Di Raizel, Rai, while seeking to familiarize himself with this era, somehow locates a loyal servant of his, Frankenstein, who is currently the principal of a South Korean high school. Rai decides that this high school would be the perfect place to help him learn

You have been selected as the fittest"
" With your talent, the survival rate [5%] in the Selha Latna is lower. "
"Do you want to commit suicide? Y/N"
"X-"
Less than a 5% chance of survival. 22 years. Countless battles with the demon dogs. In this hell; I'm surviving alone.
Hidden behind level 5, together with the outrageous hidden stats!
The extreme survival record of the strongest level 5 swordsman Ryu han bin who was thrown into this other world with just a sword.

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The man forsaken by the world, the man a slave to money and the man known as the legendary God of War in the highly popular MMORPG Continent of Magic. With the coming of age, he decides to say goodbye, but the feeble attempt to earn a little something for his time and effort ripples into an effect none could ever have imagined.
Through a series of coincidences, his legendary avatar is sold for 3.1 billion won, bringing great joy to him, only to plunge him into despair at losing almost all of it