The Devil King whom I defeated in my past life is now my boss in the office?!

Baek Young-woong (meaning hero in korean), an ordinary office worker reborn with the memories of his past life as a warrior who defeated the devil king! The memories were only useful when he used to write webnovels as a child.

Young-woong regrets having useless memories of his past life and gets a job in the executive secretarial office of Daeryong ENT, a big company.

However, after meeting the CEO, Do Yeon-hwa, for the first time, I feel the trauma from my past life experience…? It’s like, you’re facing a really strong and big devil…!

Read the terribly intertwined romance of the devil king, the CEO and the warrior, the newest secretary!

Meet Sefiria. She may be just a baby now, but she holds a dangerous secret — she has memories of her previous life as a Japanese salarywoman. Anyway, yadda yadda yadda, she died, got isekai’d, bada bing bada boom.

Now for the meat and potatoes of things. After experiencing the hell of living in such a rigid society like Japan beforehand, Sefiria wants to avoid making that same mistake in her second life. That’s when she remembered a famous saying back in her previous life:

“At ten years old, you can be a prodigy. At fifteen years old, you can be a genius. At twenty years old, you’ll just be a normal person.”

While the new world she was born in considers adulthood to start at the age of 15, Sefiria has a repository of knowledge from her old life to help back her up. Can she become a prodigy at an early age, revolutionize her world, and ensure herself a slow life that any Japanese reader would love to self-insert into?

In a fraction of a second, an university student, Kashiwagi Yuuya was summoned to another world and came back. Time didn’t pass in Japan, but Yuuya has completed the quest as a hero in another world and successfully returned. But to his surprise, he still retains his powers as a hero. Thus started the unordinary life of a hero in present day.

The popular Isekai but not Isekai web novel is now in manga form!

WN Raw: https://ncode.syosetu.com/n7294dm/

Sakra, the last surviving princess of a fallen kingdom, is being hunted down for the power of Ambrosia she possesses - the ability to grant divine strength, but only to a human. With no human companion, she decides to summon one from another world in a desperate attempt to find a knight to protect her, but the man who answers her call is less than what she had hoped for.

‘Heavenly Demon’ Baek Joong-Hyuk opens his eyes as the eldest son of the Dimitry family.
Known as the fool of the Dimitry family, pushed over by the second son. The world’s opinion is irrelevant.
‘Heavenly Demon’, no, Roman Dimitry, cannot live a normal life.

OP ‘Heavenly Demon’ fantasy!

Yusung is a genius doctor famous in the medical world.
He, who spent his whole life in an operation room, died in a traffic accident, and when he woke up, he was in another world.

But…a saintess? A holy empire? Healing magic?

“I put so much effort into learning medicine, but now all I need to do is touch someone and they’re healed?
Seriously, I think I’ve gone crazy.”

Shinichi Tanaka used to be a representative director of a large company, but now he is homeless without money or family. On a rainy day he is struck by lightning and awakes in a strange place in the body of his younger self. What is the mysterious place he finds himself transmigrated into? A weird and turbulent adventure story of a 56-year-old man who reincarnates into a different world in his 25-year-old body!

As our humble corporatist Itonami Norio is suddenly summoned to another world, it would look as if he'll be sent to a battlefield-- he, however, holds no skill to speak of, and as he is deemed to be useless. He negotiates with The King and receives a plot of land -- an empty, deserted plot of land, with no inhabitant in sight. Norio holds something he couldn't bring himself to tell anyone: The Master of Supremacy, a gift which will grant him the most comfortable of lives in this world. Hereby begins the Norio's colorful story -- having a mermaid he fishes declare herself his wife, becoming neighbors with the Undead King, this is his busy but enjoyable life -- and now a dragon appears ?!

Depicting the story of a shut-in, Kirihara Yukito, after being reincarnated into another world.
His peaceful life with his precious caring sister, Sana, suddenly come to an end when a beast appeared and attack them, thus reincarnating him into the “Ever World”. Moreover, knowing that Sana also got reincarnated into the Ever World, for the sake of finding his beloved little sister he begins his journey in another world…

In another world, the Hero and the Demon King continued to oppose each other. As their great magic collided, the explosion crossed over worlds and destroyed a classroom full of high school students. The victims who died in that explosion will be reincarnated in that alternate world. Our heroine, who has the lowest standing in the class, was reincarnated into a spider. She nevertheless faces this challenge head-on with great determination, and adapts to it surprisingly quickly. This is the story of how our protagonist, who was reborn as a weak spider monster, does whatever needed to survive.

Mako, a home centre sales clerk, fell asleep at the entrance of her house after her shift due to work fatigue. Only to wake up in a different world?! She was at a complete loss when the beastmen twins gave her shelter from the storm in their house in the village. However, it was a very poor village with tattered houses and no crops. In order to help her lifesavers, Mako decides to revitalize the village using the cheat skills unique to the home improvement clerk, obtained in a different world!

Losing his memories, the curtains of the story of alternate world transfer of the MC rises. After the transfer his name changes to Kelvin. While steadily levelling, he adds new subordinates by mastering his skill. And by the time he noticed it, he had obtained overwhelming power. Where will our MC be heading off to?

Chaerin leads a blissful and comfortable life as the lead in a romance novel. She only has eyes for the male lead, Jeha, to the point where all the extras are literal black shadows.

But then, one day, her story suddenly switches genres.

All of a sudden, she discovers that if she wants to live, she has to band together with the extras she ignored before and work with them to survive!

From the author of comes this genre-defying tale!

Shinobu Iijima lost his life along with his beloved sister and prickly stepfather in a mysterious disaster.
When he woke up, he was reborn in the world of the game he had been playing.
Shinobu was in despair as his stepfather erased his game data and he had to start from the tutorial, but he learned that his sister would soon be reincarnated into this world as well.
In order to stop his father-in-law, a top player who was after his sister's body, he embarks on a painful path to become the strongest...!

Aesir's already spent 120 years of his new life as a high elf living the lackadaisical lifestyle one would expect from him. It's about all he can take. With much more time than he knows what to do with, he decides to set off and explore the world he's spent a century in and still knows nothing about.

You can get cheat skills in a different world, but...

Somehow, she has no clothes⁉

The naked comedy of the girl from a different world begins!

While bathing in a hot spring Runa Hatagami is mistakenly transferred to another world as a hero in a towel...

Moreover, the goddess only gave her a weird "Hot Spring" skill and a high defensive power? She managed to get a bath towel with her skill, but she was still almost completely naked...

Furthermore, she was put under a certain "curse" by a witch who is planning to resurrect the Demon King... The situation makes it impossible for her to return to her original world?!

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.

From MangaHelpers :
High school student Misumi Makoto is called into a fantasy world by the god Tsukuyomi, in order to be a hero. However, powerful others in this world aren't as thrilled to have him there, and they kick him to the edge of the world just as Tsukuyomi declares that he must leave Makoto to find his own way. Now it's up to Makoto to find his own way.

I became the sister of the villain, who shed no blood or tears in a war-ridden novel! I thought I was born again as the youngest daughter of a noble family, but I'm the little sister of a villain who's only being used!

A baby's body too fragile to survive in the Lagrange household, a brutal family that makes children fight for successors… I've decided to stick to the villain in order to live!

I need you to be my guardian until I run away from here. Raise me, villain!

There has never been a hero like this before!
Is he a hero or an actual demon?

Kang Hansoo was summoned to this world with his classmates.
His classmates were amazed by this brand new world and the magic in it, but the only thing Hansoo wanted to do was quickly return home.

“Why would I give up my warm, comfortable house to have an adventure in this world…?

Even the goddess that summoned me said that if I wasn’t willing to, there was nothing she could do to force me and promised to return me to my original world.
She did teleport me, but…

When I opened my eyes, I was still in this world!
All of my friends were gone, and the only thing around me was monsters!!

A goddess tricked me…?
How do I get back home now…?
More than that, how do I survive here…?!“