One day, a mysterious virus appeared on Earth which killed every infected human over the age of 13. At the same time, vampires emerged from... more>> the world's dark recesses and enslaved mankind. Enter Hyakuya Yuuichirou, a young boy, who along with the rest of the children from his orphanage, are treated as livestock by the vampires. Even in captivity, Yuuichirou dreams big. He dreams of killing vampires. He dreams of killing them all. <<less

A world where you can contract with God and gain skills. Born as the third son of a famous knight family, Yuno was so busy controlling his innate power that he was eventually called "incompetent.".... more>>

However, in the magical knight academy, who was enrolled for some reason, he fulfilled his fateful encounter with an unnamed god who was despised as "incompetent" like himself..

Yuno, who contracted with the goddess and named her [Athena], secretly decided to make her the highest god, and decided to get a little more serious. <<less

“I’ll give you 1 billion won now, and 2 billion won after you give birth.”... more>>

Did I hit the jackpot?! Wouldn’t it be good to receive 3 billion won and then run away?

Three times. We only have to sleep together three times.

…That idea completely changed my life. <<less

The warrior Hamel went on an adventure with his companions to defeat the Demon Kings, but after dying just before the final battle with the Demon Kings….... more>>

“Waaah.”

‘What the fuck!’

He was reincarnated as the descendant of his fellow warrior, Vermouth.

Hamel — no, Eugene Lionheart was reborn with the blood of the Great Vermouth.

‘My previous body held enough talent to be mistaken for a genius, but this one… there’s just no comparison.’

With a body that had higher specs right from the start, he showed explosive growth that far surpassed what he had achieved in his previous life.

Along with the unknown reasons for his reincarnation came the uneasy reality of having to coexist with demons.

He was faced with a world that made him question everything he had believed in.

Gifted with this extraordinary body since birth, as Eugene, he begins walking down the unfinished path from his previous life. <<less

When a down-on-her-luck student runs out of money – and hope – it’s time for the devil to make his entrance and give her an... more>> offer she can’t refuse. But this devil has problems of his own. He’s a cog in Satan’s corporate ladder, who’s quickly losing credibility because that same desperate girl isn’t ready to part with her soul willingly. Now, she’s working at his coffee shop while he tries to convince her that she can have it all. And the cost? Merely her mortal soul... <<less

I reincarnated as the villainess in a book!... more>>

The one who dared to commit attempted murder on the heroine is the owner of this body?

Let’s just live in a quiet place where we have fun and eat! That’s what I thought for a while.

It was so, so, so cold here in the north, where I was kicked out as a punishment.

Before I froze to death, I called the Great Demon of Fire and set fire to the fireplace but...

Why isn’t he going back? If you’ve done the job, shouldn’t you go back?!

I was flustered to find out that I had signed a life contract with a demon just to start a fire but to think that I’d be responsible for relieving his desires!

The bickering romance between a big puppy demon and a small villainess lady! <<less

Yurisina, the daughter of the demon king, has always wanted to become a full-fledged demon by making her first contract with a human.... more>>

That's when Princess Marianne of the Pedin Kingdom summoned her to take revenge on Queen Orphelius who poisoned her, and asks Yurisina to live in her place... <<less

From Xilang to West Lang Sophia, the haughty Princess of the Kingdom of West Lang, was reduced to a lowly maid! Trampled on and humiliated, the reality she’s faced with is a harsh and cruel one. ... more>>

However, relying on nothing but her wits, she rises up against the odds. Will she be able to take back everything that once was hers… and more? <<less

I accidentally kidnapped the grand duke I have a one-sided love for!... more>>

I ended up accepting the grand duke's proposal to have a contractual relationship in return for fixing this issue, but…….

“Vivian. May I kiss you?”

Huh? Are we kissing as soon as we started dating?

“We'll kiss, then we'll take things further, and then let's get married, Vivian.”

……I'm in big trouble. I don't think the grand duke is in his right mind……!

Is this relationship really okay? <<less

One day, I was summoned to this world.... more>>

Beasts poured out, and an incredible crisis came.

My talents couldn’t have been worse.

[The player’s talent level is at rock bottom.] [Almost all the numbers are hopeless.]

Whether you have to become a warrior or a wizard.

Whether you’ve gone back in time.

You have to take advantage of everything in order to survive.

“What about it?”

“I’ll use everything I have to survive!” <<less

The great Demon King, Embilden, was the first to unite the demon world. One day, a human dared summon the Demon King. It was the greedy and fat, Prince Lagier Lou Jerlayla Rodwill! However, while summoning the Demon King, he had made a mistake in the process, which caused his death. Lagier’s body is forcefully frozen because of the contract he had made with the Demon King…... more>>

“Well, I might as well just grant him his wish.”

The Demon King decides to become Lagier and grant the wish the Prince had before he was frozen to death. Until the day the kingdom of Jerlayla rules the world with power unmatched by anyone! This is the start of a new legend......!

“I should start by losing weight.”

…I need to go on a diet first. <<less

In a world where your number of equipment slots—the number of soul contracts you can make with adventurer weapons and other such gear—determines your status, Noroa found himself with exactly zero slots. ... more>>

Then one day, he found a mysterious doll who told him that he has the ability to equip 9999 pieces of equipment...but only if they're cursed! Starting with a cheatingly powerful cursed sword, Noroa's adventure begins! <<less

“You, who has always been useless all your life, can now be useful for once.” ... more>>

Ludis, an illegitimate child of the Emperor, was always abused by her own father due to her lameness and uselessness. She was offered to an ancient god so as to save their Empire that was currently in crisis. In the midst of offering herself, a man approaches her.

‘Who would have thought that I’d die in this way…’

“What’s your wish?”

Hair as dark as the night sky and eyes as bright as the stars. Ludis found it harder and harder to breathe being next to him.

“I don’t know what to wish for.”

“Tell me anything you want. I’ve waited for five thousand years just to give you what you want.”

The princess, Ludis, who became a sacrifice for the Empire, is now in a contract with the ancient god, Lavane. <<less

Miroku-san, the slit-mouth woman, is to marry high school student Kouichi to maintain her existence as his family has been in charge of upkeeping superstitions for generations. To add, there seems to be another reason that he seems more than willing...... more>>

Miroku, however, would rather use her own strength than borrow that of others. Thus, they establish a contract as follows.

1. For a trial period of a year, they are to act as though they were married.

2. If she is able to scare him within that year, the engagement will be broken. <<less

The manga centers on a second-year high school student who is standing in for his Catholic priest father to protect their church while his father... more>> is away. He saves a troubled beautiful young girl who is in front of his church one day, but she turns out to be the demon Asmodeus. <<less

Natsume has always been aware of the supernatural, but after he inherits a magic book, the supernatural is aware of him!... more>>

When Reiko was Takashi's age, she bound the names of demons and spirits in her Book of Friends, enslaving them to her capricious whim. Now Takashi is the owner of the book, and the creatures will do anything to get their names back. <<less

The older brother, imprisoned by his sister, dies just as he escapes and is reincarnated in another world!... more>>

He thought he had been freed from his demonic sister, but now she too has been reincarnated in the same world...? <<less

The air of celebration surrounding fifteen-year-old Oz Vessalius’s coming-of-age ceremony quickly turns to horror when he is condemned for a sin about which he knows... more>> nothing. He is thrown into an eternal prison known as the Abyss, from which there is no escape. There, he meets a young girl named Alice, who is not what she seems. Now that the relentless cogs of fate have begun to turn, will they lead only to crushing despair for Oz, or is there some shred of hope for him to grasp on to? <<less

A charitable count offers to adopt young Caidel into a life of nobility, and the orphan boy only has to pledge one thing in return: follow the "ember" and seek out the witch that set fire to his childhood village.... more>>

Raised as a skilled fighter in a family of alchemists, Caidel now sets out to find the white-haired witch. When he finally encounters a woman with flowing white hair, she is kind and gentle—contrary to the rumors spread by other villagers.

Could the sweet Eleanor be the same witch from his nightmares? Between love and vengeance, which will Caidel choose? <<less

The story opens as middle school student Takao Kasuga receives an F on a math test. But he doesn't even seem to notice because he's too engrossed in surreptitiously reading Beaudelaire's The Flowers of Evil. And the day goes downhill from there. In a moment of weakness, he finds and takes home the gym clothes belonging to sweet, pretty Nanako Saeki on whom he has a major crush. Unfortunately for Takao, there's a witness to the theft: Nakamura, who has a huge chip on her shoulder and a sadistic streak.... more>>

As the saga unfolds, we see Takao struggling to decide whether to confess or cover up his misdeeds at the same time that he tries to win over the girl of his dreams, and avoid the blackmail attempts of Nakamura, his new ”BFF.” <<less

Just a stone´s throw from London lies the manor house of the illustrious Phantomhive earldom and its master, one Ciel Phantomhive. Earl Phantomhive is a giant in the world of commerce, Queen Victoria’s faithful servant and a slip of a twelve-year-old boy. ... more>>

Fortunately his loyal butler Sebastian is ever at his side, ready to carry out the young master’s wishes. And whether Sebastian is called to save a dinner party gone awry or probe the dark secrets of London’s underbelly, there apparently is nothing Sebastian cannot do. In fact, one might even say Sebastian is too good to be true or at least, too good to be human.

Note: For readers reading after watching the anime, read chapters 1, 5 and 14, then complete chapter 21 onwards. <<less

Alto who was dangerously close to repeating a year ends up invoking a magic formation from a book he found by chance and summons a... more>> demon named Vermeil who had been sealed. <<less

A breathtaking vampire romance depicting adventure and love in search of the legendary 'vampire flower'. The vampire Louvre sets out in his quest with the... more>> human contractor, Seoyoung, appearing in the human world after 500 years. <<less

Napolly," an ordinary high school girl in modern times, was tired of a boring school life. ... more>>

'The world is gone?!'

The news is full of breaking news that the mysterious destruction continues, but the main culprit is seen in the eyes of the surviving Polly. White and brilliant silver scales, purple eyes with sadness and madness.

'The giant dragon I saw in the game!' In front of Polly, who can see the transparent dragon, the twin sister of Transparent Dragon, "Idae ah," appears, and the dragon's name is "Israel." Napolly, who was forced to take part in the power of Ideiya by half force to calm Israel, who was dumped by a wicked woman, headed to the second world of the past. Can Polly be friends with Israel, who is trying to destroy the world, and calm it down? <<less

Lee Kyung Ho's mind was engulfed with ending his life due to bullying and the loss of his mother. He attempts to, but is saved.... more>> His determination to commit suicide somehow entices Sierra, a grim reaper who later offers him a contract. This contract blesses him with the ability to borrow the powers of the dead in their previous life in return of sacrificing years from his lifespan. For the sake of attaining what he wishes for, he eventually agrees to it. <<less