The main character, Lord Li De is the fourth son of Lord Yunyang of YongTian Kingdom. After being reincarnated into another world filled with monsters and magic, he tried to live leisurely, but his father had different plans for him. He tried to make Li De a sacrifice in order to make his first son gain more popularity and seem a bit more cruel. This manga starts out by showing how Li De struggles to escape from being a sacrifice, then consequently how he manages his own Territory and becoming a Lord himself.

This manga is adapted from the SF Light Novel "This Overlord Doesn't Care About Anything", which is being translated over at Re:Library by raltzero.

The journey to the martial peak is a lonely, solitary and long one.In the face of adversity,you must survive and remain unyielding.Only then can you break through and and continue on your journey to become the strongest. Sky Tower tests its disciples in the harshest ways to prepare them for this journey.One day the lowly sweeper Yang Kai managed to obtain a black book, setting him on the road to the peak of the martials world.

“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/

"…That person, my fated one."

Everything changed for Berlina, a girl who reincarnated in a fantasy world with memories of her previous life, the moment she laid eyes on the Hero, Chris. She abandoned her life in the city and started a new life of chasing after him! Whether in fire, water, or inside a dangerous dungeon, firmly hiding 10 meters behind the figure of the Hero, to chase and watch over him. All to be his bride!!

Senya is just an ordinary guy, who wanted to become an astronaut as a kid. One day and suddenly, he's transported into another world after seeing on the rooftop of his school something like a "tower" going across the sky. There, he witnesses a ruined world, where skyscrapers are connected by suspension bridges. Senya, perplexed, manages to see a girl standing on the roof of another building, as well as a masked man holding a bloody weapon in his hands...

At his death, the great sage used the new magic he developed to reincarnate into the future. However, he was deemed to be talentless and abandoned in the forest of monsters where he was picked up and raised by goblins. To repay them, he helped them evolve and taught them magic. The story of the abandoned child who will build what would be known as the great empire of monsters.

University graduate Mu Siyun sent his resume to the star fleet on a whim and somehow became the Fleet Admiral! This is the story about an admiral with a harem of 3000 female soldiers conquering the universe.

Kurono Crawford (Chrono Crawford), a noble of Cepheus Empire had a secret. It was that he came from a Different world… Modern Japan. Having the knowledge about the modern weapons and his sense of values, he was an existence almost like a cheat, aiming to be the “Harem king”.

Abandoned by his superiors, left in command of the Empire’s rejects consisting of demi-humans such as Minotaurs, Dwarfs, and Elves, and thrust into a position as head of a poor fiefdom, Chrono will do everything he can to rebuild and strengthen his forces and revitalize the land, aided in part by his knowledge of the other world.

"Those who clear quests, shall receive everything." An RPG adventure with HCLW and his allies, set in a lucid reality.

raw:http://comic.naver.com/webtoon/list.nhn?titleId=670152

The first life. After a tragic accident losing his family and legs, he ends his own life. The second life. He earned fame as the Red Demonic Master in Zhongyuan, but was betrayed by the man he trusted the most. And now comes his third life. In his life back in the modern world, Gang Jinho decides to live a normal life... However, he was too used to the Zhongyuan life to become a normal person! 'I wanted to live peacefully. But you are the ones who started it. I hope you're prepared for this.' In front of the threats of his new life, can Gang Jinho shake off his impulses as the Red Demonic Master and obtain the 'normal life' he desires? The adaptation story of a legendary martial artist in the 21st century!

While an island half-disappearing from the face of the earth, a mysterious organization is sending out invitations for a tournament to every skilled fighter in the world. If you win you can have ANYTHING you want.
They're recruiting only the best to fight the best and claim the title of The God of High School!

Sansui died and was taken to god, where he explains that due to his mistake he killed Sansui, and as an apologize god said that he would reincarnate him in another world with the power he desires. Sansui desire to be the strongest in the world, but soon realizes that his desire may be the most difficult test of his life.

Manga adaptation of Fate/Grand Order.

A college student, Sakurai Hiroki was summoned to another world to defeat the Demon Lord. And since he got “Priest” as a job, his starting Recovery Stat was more than enough to heal any wounds, so he dumped all of his Stat Points into Evasion. In other words, he’s aiming for an Evasion Healer who will never get hit by enemy attacks. But unfortunately, people in that world couldn’t understand his ideal! The King got angry at him and almost immediately labeled him as useless! And thus, the story of how Hiroki become an odd Healer who can even avoid Dungeon Boss’ attacks with ease has started!!

Possessing both flexibility and tenacity, Imomushi (Japanese for Caterpillar) is an assassin that does not kill anyone but those who are assigned to her. She seems to have had something happen between her and her older sister in the past, however.
A new spin-off story from the same author of Arachnid, this story looks at the inner workings of a top assassin within The Organization itself.

Note: In early 2014, serialization resumed with a new artist. The series had been on hiatus after the sudden passing of the previous artist in 2013.

Following the advancement of spirit technology, the humans of Douluo Continent conquered the ocean and discovered two new continents. After being hunted by spirit masters excessively, the spirit beasts are nearly extinct. After countless years of lying dormant, the King of the Spirit Beasts has awakened in the Great Star Dou Forest. It will lead its remaining clansmen in taking vengeance against humanity!

Tang Wu Lin is determined to become a powerful Spirit Master. However, when he awakened his martial spirit, it was actually an…

Incomparable talent. The battle of the Dragon King. The Legend of our Dragon King hereby begins.

What if you can restart your life with a different setting just like a game? DONG TAE always get bullied by his classmates, but TAE BIN, sits right next to him, is handsome and popular at school; and now, TAE BIN suggests DONG TAE to play a little game.
(Source: LINE Webtoon)

Hit by a truck and reincarnated in a different world, then a beautiful woman greets me "Long time no see Master"

Restart in Easy mode from level 1 in the peaceful world that I once saved!
Follow the world's strongest sage maid, train slave girl to be strong, convert thief girl, get more friends! Even the luxurious residence and the strongest equipment remain as you wish!

Be the most powerful in this new game!

Satsuki, a boy high school boy and his childhood friend are riding in an underground train until it suddenly stops. Upon closer inspection the denizens of the train discover a mysterious beast! Panic sets in as the passengers struggle to survive the beast and escape to the surface.

The story is a continuation of the events depicted in the game Persona 4 Arena and begins the day after it concludes. The Midnight Channel is back on the air and once again broadcasts a strange advertisement for another fighting tournament christened P-1 Climax, that shows members of the Investigation Team and the Shadow Operatives in combat. Just moments after this, Inaba is subject to a power outage and is engulfed by a bizarre red fog.