The war ended with the defeat of the villains. Now the world is ruled by corrupt heroes. And one of those heroes killed Yihwa's unni. She doesn't know which one, but that doesn't matter. If she kills them one by one, they will be among them. Yihwa becomes the Hero Killer, a villain who hunts heroes every night. This one villain's vicious action fight. "I'll kill everyone, and take everything away!"

I reincarnated as Iriya Satoshi, a mob character in a gal game world. But for some reason, the heroines are worshipping me?!
And to make matter worse, every single one of them is a complete yandere...

"I'm sorry. Please don't throw me away. Don't hate me."
"...I only have eyes for you. We'll be together forever, right?"

The actual protagonist is right there, so why are they all coming after me?!

By the way... where did my [Diary] go?

A heart-pounding reemployment(!?) story between a fed-up corporate slave and a cold, callous, villainess!

Three years after graduating college, Natori Midori, who once idealized the "grown-up adults" she saw as a child, is working hard at her job as a temporary employee. However, one day, her contract is suddenly terminated for an absurd reason. As she sits there, wondering if there would ever be a workplace for her to devote herself to, her phone flashes and she finds herself in the world of the novel RPG she was playing. And before her eyes is the villainess, Lapis Tenebrae, who betrayed the heroine and committed countless atrocities before losing her life!

In a dilapidated castle, Astaroth awoke as a Demon King.
With his ‘wisdom from his past life,’ he would rule over his lands as a thorough ‘realist.’

“Demon King, why are you attacking the level 1 Heroes?”
“Defeat them before they become stronger. That is called strategy.”

“Demon King, why are you sending fake money to the enemy country?”
“To bring chaos to their economy, so they will self-destruct.”

“The werewolf troops have attacked. Should we use silver bullets?”
“Not bullets, shoot them with canons.”

And like that, Astaroth ‘reformed’ the old tendencies.
He became a lord who was loved by the people and his subordinates, and he would go on to be called the most powerful Demon King in history.

After experiencing an accident in the military, Kang Jinhu gained the ability to foresee the future.

He decides to use this ability to invest in various companies and make money, aiming to become the world's number one investor.

How far do the limits of his foresight extend? Beyond investments, it touches economics, politics, corporations, and even global affairs. From now on, he’s reshaping the world of finance!

“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/

Magnus, a mage who always got yelled at “just shut up and follow my orders!” by the Hero because he was deemed “useless”. One day after getting fed up with his party he left, upon leaving he met a merchant that sold him a mysterious book.
And it turned out that the book which was written in the god's language was actually an ultimate encyclopedia book that had a lot of useful information on how to defeat the Demon Lord!
Thanks to that book, he was able to know about boss monsters' weaknesses and raise his level more efficiently, data about important people, and it even had info on complete gourmet spots in any city! Moreover, by using his wits and scheming mind, he's even able to outclass the hero party! With the ultimate encyclopedia in his hands, advance to the true route to defeat the Demon Lord!

Magnus wasn't chosen by destiny to be the hero. That's why, He's going to beat the Demon Lord with his own power and wits and save the world.

A young man unfortunately died in the modern era, he reincarnated in another world under the name "Eldo," which also happened to be a world similar to a VRMMO game that he used to play in his previous life. However, it's a world where he knows the "basic skills." Eldo became a level 1 adventurer, playing as a "novice," but he knows the world better than anyone, and this is because of the "data he knows." Will the reincarnation in this world make him strong?

Two geniuses who made a name for themselves in the middle school baseball world but had distanced themselves from baseball have serendipitously come together at an obsecure public high school in Tokyo.

Kiyomine Haruka, a pitcher with a flawless, powerful arm. His battery partner, the shrewd catcher known as the 'General', Kaname Kei (who's currently a complete amateur due to memory loss!). And then there are those who once fell in defeat to these two...

Their paths have crossed once more, and now their high school baseball story begins anew, springing into action!

I returned to Earth after hunting demons in the otherworld for three hundred years. However, I did not return alone.

What happens when next door to Fujiwara, an upcoming mangaka, moves Yuuki, who was his teacher back at high-school and first crush? Yuuki, a married woman now is starting a new life in the city but her husband is always away on business so she finds comfort in the company of her former student but what she doesn't realise is that Fujiwara can listen to everything happening in her apartment through the building's thin walls.

Yuki and Asaka are childhood friends and best friends. One day, after a boy confesses to her, Asaka tells her friend, "I'm going to try dating him. Just for the experience." Yuki, totally pissed at the thought of her best friend being taken away by some rando who appeared out of nowhere, finds herself......

I don’t need any deep relationships. I have no desire for a girlfriend, and I only require one friend who holds any value to me. Ever since I threw out my youth for the sake of efficiency, there is one person who keeps entering the bedroom of Ooboshi Akiteru. She’s neither my little sister nor my friend. She’s nothing more than a bothersome, annoying Kouhai, as well as my friend’s little sister: Kohinata Iroha.

“Senpai, let’s go on a date~! Did you think I’d say that~?”

Rather than blood, it seems like energy drinks run through her veins. She keeps occupying my bed, and she tries her best to seduce me with whatever method she can play to her favor. She’s a girl who’s constantly annoying and obnoxious around me. Even though I’m busy all day long, she doesn’t care.

And in case you’re wondering why all these envious gazes are directed at me, it’s because Iroha is actually really popular. She’s an honor student at our school with top grades to boot, and she’s known for being kind and proper to anyone she meets.

…Hey now, why are you only so annoying when you’re around me?

The latest from Sui Ishida! Sometimes to fight a monster, you must become one!

After overcoming the threat of Acnologia and Zeref, Fairy Tail has become stronger and more energetic! The 100 year quest which Natsu and company left for, and also to the members who had remained at the guild, something new is going to happen!? Although the story was supposed to have concluded, a new adventure now begins!

After fierce bullying, Yuuto Kiba wanted to die. On the verge of committing suicide, his fate changes rapidly when a strange and funky beautiful girl, Kubaru, tells him, "Give me your life."

Make your life happy with love?! A slightly strange and psycho love drama.

After being reincarnated, Ars Louvent is supposed to live in a different world as a weak aristocrat. Both his physical strength and intelligence were mediocre in both worlds, but here he naturally possessed a skill called "Appraisal" that allowed him to see the potential of any person. By gathering talented people by his side, Ars uses this "Appraisal" skill to transform his weak territory into the strongest one! But the road ahead of him won't be so simple.

Ao Sato is accidentally swapped with himself in a parallel world with a male/female ratio of 1:39.

He finds a kind family and lovely women at the place where he was switched.

Seeing the outside of these women, he's relieved to see that the number of men and women has changed, but not much else.

However, their inner lives are filled with conflicts and troubles.

Shinichi Kudo is a high-school student who, by using observation and deduction, is good at solving mysteries. While investigating one, he is caught by the criminals that he was watching and forced to take an experimental drug. Leaving him for dead, the criminals disappear. Instead of killing him, however, the drug turns Shinichi into a little kid.
To preserve the illusion of his 'disappearance,' Shinichi adopts a new name based on his favorite author (Arthur Conan Doyle) and becomes Conan Edogawa. Ran, his (actually Shinichi's) childhood friend takes this little boy under her wing and brings him to her home.
Conan now lives at a detective agency run by Ran's father, but his mind is as keen as ever and he continues to solve mysteries... always allowing Ran's father to take all the credit.
As far as everyone's concerned, Conan is just a little kid anyway... even to Ran. This is *extremely* frustrating to Conan since nobody will listen to a 'little boy.' Despite this, Conan has a mission... to find the criminals who did this to him and get the antidote to that drug.

Note: Won the 46th Shogakukan Manga Award in the shōnen category in 2001.

Seonghyeon Han is a victim of a violent crime that left him with impaired legs and a fear of the outside world. Now, he faces an even greater challenge: while he gained the power to create clones, he has just 24 hours before being sent to another dimension.

As the countdown ticks down, Seonghyeon makes a desperate move -- he sends his clone through the interdimensional portal, and discovers his real body can remain safe at home.

Thus begins the epic tale of Seonghyeon's... clones.