This battle fantasy manga follows several heroines who protect people from the monsters that appear through a gate connecting to an alternate world known as the Mato (magic capital).

The world is ending. Monsters from legends appear everywhere. They eat people, conquer the streets, and begin to make dungeons in the buildings and subways. If you could choose one job in this decrepit world, what would you choose? For a “necromancer” extinction is my playground and death is my wealth.

Just when Liu Jinshan thought he could die without regrets, his family was annihilated! As a result, he became determined to live just so that he could see his only surviving granddaughter, Liu Seol, reach adulthood. As he struggled to raise her and train her with his aging body, Liu Seol, who was born with the talent of a supreme martial artist, grew up much faster than he thought she would. "Don't worry, Grandpa, I'll protect you from now on!"

Gu Yangchun, who betrayed the Orthodox sects, became a demonic human under the Heavenly Demon.

Living as a demonic human, he led a life filled with regret. He committed countless evils not of his own accord, but under the orders of the Heavenly Demon.

In the Great Orthodox-Demon War, thanks to Wi Seol-ah, who cut down the Heavenly Demon that made even the three supremes of the Orthodox forces kneel, Gu Yangchun was taken prisoner by the Orthodox forces and suffered for his sins.

With whatever morals he had left in him, he died giving Wi Seol-ah information about the Demon Cult due to a bind the Heavenly Demon had placed on him.

Then, for some reason, Gu Yangchun regressed to when he had first met Wi Seol-ah. Realizing the regression was not a dream, Gu Yangchun decided to live a quiet life. However, bad ties from his previous life began to draw near, one by one.

Killed on the battlefield without glory to his name, Yuseong Dan receives an opportunity to grow stronger with a strange quest and level system. But each quest he’s forced to fight only seems to be getting harder and harder. Can he level up enough to avoid the same miserable ending and become the powerful hero he wishes to be?

The descendants of mankind, born in the labyrinth and raised on the milk of monsters, possessed special strength and strong bodies. When they returned to earth, mankind referred to them as dungeon babies. Among them, Kim Jinwoo was born in the deepest labyrinth.
“I never tried to become strong, I just wanted to live.”
From the lowliest excavator to the king of the labyrinth, his life story is now unfolding.

There once was a hero who was deemed the strongest on Earth.

“But he died. How would someone that we killed return?”
“Yeah. I’d love to see him try and come back.”

However, 20 years later, he actually returned!

“Why are you guys so shocked? Did you do something that you feel guilty about?”

‘These motherfuckers. I’m not going to let them be.’

From MangaHelpers:
29-year-old programmer Suzuki Ichirou finds himself transported into a fantasy RPG. Within the game, he's a 15-year-old named Satou. At first he thinks he's dreaming, but his experiences seem very real. Due to his use of a 3-time-use special power (meteor shower), he ends up wiping out an army of lizardmen and becoming very high level. He hides his level and plans to live peacefully and meet new people, though developments in the game story (like the return of a demon king) might get in his way.

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!

After being held in disdain and having his life put in danger, an orphan from the Demonic Cult, Cheon Yeo-Woon, has an unexpected visit from his descendant from the future who inserts a nano machine into Cheon Yeo-Woon's body, which drastically changes Cheon Yeo-Woon's life after its activation. The story of Cheon Yeo-Woon's journey of bypassing the Demonic Cult and rising to become the best martial artist has just begun.

Devoid of professional skills, unemployed Yu Damduk was forced to take a part-time job. Frustrated with his pathetic life, he vents to the gods, gets stricken by lightning and passes out.
[Hiring] God is waiting for you.
When he wakes up, he finds a status window floating before his eyes.
Since I have nothing to lose anyway, let’s go with the flow…
Jumping into God’s Part-time world to have a better life, the adventure of Yu Damduk, who became the lowest-class God in the part-time world, begins!

In the mobile gacha game infamous for its atrocious difficulty, the Master ranked 5th in the world, 'Loki', loses consciousness while raiding the Dungeon.

'What? I'm a game character now?'

After waking up, 'Loki' realizes he has turned into a Level 1, 1-Star Hero—'Han Yslat'. To return to Earth, he must lead the newbie Master and heroes and clear the 100th floor of the Dungeon!

'You messed with the wrong guy.'

This is the story of hard carrying by Master Loki who never accepts even a single defeat.

Akira Kamishiro was a very successful manga author, who was diagnosed with blood cancer one day. He regretted the way he lived, where he could only build up empty relationships. Angry at his mother for asking him to send her some money, he died in a car accident. He was given a chance to choose his new mother and reincarnate in another world.
Akira, not wanting to have a repeat of his past life, decided to choose an ordinary but safe life.. He was reincarnated as Akira, the only son of a magic store, with his previous life's memories. He had no talent for swordsmanship or magic, but he didn’t care as he was still loved by his family. At one point, he realized that he can embody various things by "drawing a picture". That's when he noticed his cheat ability...!?
This is a story of Akira who wanted to live a mediocre life in another world and his adventures to protect his peaceful place!!

The beloved characters of Mairimashita! Iruma-kun star in this Mafia-based spinoff! Young Iruma saves an injured mob boss from death... and then becomes his grandson!?

The Earth’s existence is under threat once more as Itarim, the gods of other universes, seek to fill the void left by the Absolute Being. Sung Jinwoo has no choice but to send Beru, the shadow ant king, to awaken his son’s powers and start him on the journey he once took. Suho must conquer the shadow dungeon and earn his place in the world of hunters as he navigates through a new world against a new evil looking to swallow the world whole.

Sequel to Kengan Asura. Takes place 2 years after the tournament.

This kindergarten is where the children of the world's most important figures attend; politicians, company presidents, oil tycoons, you name it! Legendary ex-assassin Rita is assigned to a secret mission to protect the children of the kindergarten from assassinations in exchange for freedom!? An Action/Comedy story about the world's "safest" kindergarten!

The ninth story arc of Jojo’s Bizarre Adventure.

O’ahu, present day. Dua Lipa is the trending musician, and COVID is still a major concern. On this island lives a 15-year-old boy named Jodio Joestar. Living with his brother and mother, he acts as a dealer for certain illegal substances. One day, his employer comes and shows him an excellent find: a Japanese person has landed in Hawaii with a diamond worth over six million dollars. Normally it would be impossible to steal, but for someone with a stand…

This is a story of a young boy and his quest to become rich.

Kim Jun-Woo, the world’s first SSS rank genius hunter.
He is an incredible user of ability, but his horrible personality leads to problems with his reputation.
In the midst of his troubles, he was attacked and killed by an unidentified group.
And when he opened his eyes, he had returned to the past of 10 years ago.

Though he tries to become a hunter again and raise his rank, his skills were all sealed by the karma of his previous life.
In order for that to be released, he needs to work as a ‘Dungeon Cleaner’, which is infamous for being extremely tough in this industry?!

But this cleaner, he’s different!
Not only monsters—troublesome hunters, superiors only taking up positions after they’re hired out of nepotism, and even people who will be colleagues with him.
He’s making a complete mess to clean everything up.
The ex-hunter, who is stronger than the current hunters, and his crazy cleaning begins!

In a brutal, lawless medieval world where war and poverty reign, and twisted magic defies all reason, the captain of the guards grinds through another grueling day, pushing his battered body to the limit in a land where survival itself is a merciless test.