All the members of my sect are abnormally strong. All my disciples turn out to be big shots, and I'll definitely become invincible in this world!

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.

I, a corporate slave, transmigrated into a game as a noble. But I'm just an extra that will die at the hands of the villains in the future? No way. I'll somehow reform them and live a lavish life! For this I started sponsoring the future villains to prevent them from turning evil and helped them overcome their difficult circumstances. As a result, they all grew up to be upstanding and ordinary, enough to make me feel proud. And so, I became the ultimate mastermind of the kingdom... Huh?

“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/

One day Kang Songhyun opened his eyes on the Azul Continent.
He didn’t know the reason.
When he woke up he was no more in South Korea.
He’s thrown into a fantasy world.
‘Why did I come to this kind of place?’

At that time, the status window pops up in front of him
[Your job is ‘healer’?]

But among his skills…
‘huh? …No healing?’
That was the beginning of the life of an unlicensed healer. A healer who does not know how to heal.

Kang Songhyun is good at everything except healing
In a fantasy world as an unlicensed healer his story of survival begins.

Cedric, the Great Sage of Heaven. He was called a living legend because of his overwhelming magical power until he died an unlucky death due to the betrayal of his subordinate. Feeling the limits of his power, Cedric plans to start over by reincarnating as a child. However, he gets reincarnated in the body of a bullied student! For the young man who went as far as to give his life to call Cedric, a revenge drama of the strongest great sage begins!

Sora, a Japanese boy who was summoned to another world, gained the skill "Walking". Its effect is that "no matter how much he walks, he never gets tired". Because of this weak skill, the king expelled him from the group of summoned heroes. But when Sora starts walking in another world, he suddenly levels up!

Walking had a hidden effect of "gaining 1 EXP for each step taken". He acquired useful skills such as 'Appraisal', 'Alchemy', and healing magic...

Getting one skill after another, he became talented just by walking! The adventure to encounter and touch the unknown is about to begin!

The manga is a re-imagining of the famous Journey to the West story, and centers on the Buddhist priest Genjō and his journey to India as he is accompanied by three beautiful and charming women: Son Gokū, Cho Hakkai, and Sha Gojyo.

An abused little girl with nothing to live for meets an old man with a nasty personality

[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?

Raul who had defeated the demon king as the strongest hero should have become the savior of the world.

Having his treasured companions and family killed by power hungry aristocrats, he was executed with false charges brought against him by the princess. Just before his life collapsed, at last his heart fell into darkness.

...I will tear those traitors from limb to limb. Burn them at the stake. Sever them to pieces. Skewer them. I will kill every one of those bastards without mercy and make them taste hell's suffering.....!!!

Obtaining the power of darkness, Raul was revived. Sneering, he vowed revenge.

“Oh, I’m looking forward to it – from now I'll bask in their blood as I please.”

Several days after the hero's revival in the imperial capital where flowers bloomed in profusion, the parade that would advance towards tragedy began.

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!

Before the Pirate King was executed, he dared the many pirates of the world to seek out the fortune that he left behind in one piece.
As a child, Monkey D. Luffy dreamed of becoming the King of the Pirates. But his life changed when he accidentally gained the power to stretch like rubber...at the cost of never being able to swim again! Now Luffy, with the help of a motley collection of nakama, is setting off in search of "One Piece", said to be the greatest treasure in the world.

Note: The best-selling series in manga history.

Was a finalist for the Tezuka Osamu Cultural Prize from 2000 to 2002. The German translation of Vol 44 won the Sondermann audience award at the Frankfurt Book Fair Comics Centre in 2005.
Won the 41st Japan Cartoonists Association Award Grand Prize alongside Neko Darake in 2012.

In the era of astral pets, only the might of pets was essential! However, making the pets stronger has always been a slow and arduous process for pet warriors. That was until the appearance of a mysterious pet shop that changed everything!

The weakest skeleton could slay a great golden dragon with a single strike after training at this pet shop! Even the humble watchdog of the shop possessed ten legendary skills, and the female worker in the shop claimed to be a Goddess...

As for what the shopkeeper Su Ping thinks: I'm merely training these cute pets to become exceptional overlord beasts. What? Is it not normal?

Lokan was the ‘King of Violence’ who reigned as the strongest in the virtual reality game, ‘The Lord’. Unfortunately, the assassination order issued by an enemy guild caused him to lose everything. To his surprise, the next time he woke up, he had returned back to three years ago!

“Fucking brats, just you wait. I’ll devour you all!”

A new story begins as Rokan, who travelled back in time, climbs his way back to the top!

The hero and weapon are the strongest connections! An exhilarating fantasy that lurks from the back of the world!
Ned, a young man who has been behind many of the world's greatest achievements, using a weapon known as human networking.
One day, however, he is judged by the selfish king to be a liability and expelled from the heroic party.
Ned decides to start as an adventurer from scratch. But his life as an adventurer is naturally out of the ordinary, as he is adored and connected with everyone from the leader of the knights to the princess of the mermaid tribe...
'Can I get help from the Wisdom King and the Great Sage to find this person?'
Meanwhile, the King is coming to a realization. The heroes' party was full of capable, but incredibly problematic children, and that it was Ned that controlled them..
Thus opens a new story of a hero who changes the world from behind the scenes with his motto of "using connections".

Every night, he prayed to wake in a world of magic and adventure. One day, his wish came true, though not in the way he expected. He awoke in a vast, snowy wilderness as a Barbarian, a powerful race feared for their strength and savagery.

Though the world was everything he’d dreamed of, his new form came with challenges. Determined not to live as a mindless brute, he learned the human tongue, studied their customs, and became a registered mercenary. But despite his efforts to belong, his monstrous appearance and overwhelming strength lead most to see him as a threat.

Now, caught between the world he longed for and the one that rejects him, he must fight to prove he’s more than what others fear and uncover the reason he was brought here in the first place.

The story is set in the modern world, but there exist doors that can take people to the "other side," where strange urban legends and internet stories prove to be true. College student Sorawo Kamikoshi finds herself exploring one of these doors, and almost dies on the other side, when she is rescued by another girl named Toriko Nishina. Toriko is mysterious girl, but very skilled with a gun, and she seems to be searching for someone else on the other side. Together, both girls start to explore these doors to the other side.

From MangaHelpers:

Nagumo Yumi is an idiotic high school girl, whose post-graduation plan is to go to the US and become president. To her high school friends' amazement, she actually manages to make it to the US during summer vacation. After befriending some elderly veterans, she becomes convinced that joining the Marine Corps is the best way to move her dream forward. The waitress Linda Crawford joins her to sign up at the recruitment center, and she also meets friends among the new recruits, Rita Fernandez and Donna King. Will they have what it takes to become a Marine? [tethysdust]

If I can succeed it's OK to use bugs or any possible way! A story of reincarnated ultra-high obesity young lord.