From Yen Press:

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.

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.

A Necromancer called The Corpse God is fighting against the Church, that is trying to subjugate him. Using his last ounce of power against the Calamity Crusher, he gets defeated, but his reincarnation magic activates.

Suddenly, he got transported in a world of modern society and in a body of kid Polka Shinoyama. What is gonna happen to him in this world? What will he do?

Follows the story of “Edo's Sanni-en (Sajin no)” Takasaka Jinouchi, Jozawa Junai, Shoji Jinouchi. Three years after the battle of Sekigahara (1603 AD), Okubo Changan invited Takasaka Junouchi, who is known as a former thief, to participate in the battle, but what will he get in return?

What she saw after losing her powers was the true beauty of the world... Amira, once hailed as the "omnipotent caster," has fully exhausted her magic force, making her just a regular dark elf. Once, she illuminated the world with her spells; now, she converses with the wind, kindles fire, leans how to cook, and searches for new meaning to her life. Quiet happiness and small miracles have taken the place of almighty magic in her life. What will she find in this second-life fantasy as she experiences rebirth after her loss?

You're mediocre and talentless... but have no fear! You can acquire the talent from your previous life THROUGH THE POWER OF PETALS!!!

The setting is a certain kingdom. In order to save the kidnapped princess of the kingdom, the Kingsguard squadron challenges the "Dragon Tower," a gigantic structure floating in the middle of the sky, but they are blocked by powerful demons.
A provocation is made by a neighboring village to replenish the injured personnel, and when a young man is sent to the tower, the wheel of fate begins to turn.

Tale of sword & sorcery and labyrinth exploration begins!

The Age of Adventures that started when the Gates opened. The Age of when everything fell apart, filled with desperation, anguish, and misery. And… The Age of when everyone gave up trying to fight back. In that Age, there was only one Explorer who fought to the very end. “You’re the only one left. The Last Explorer, Elpam.” In that moment, the Explorer’s history came to an end, as he returned to the start of the story.

From MangaHelpers:
A young noblewoman once dreamed of becoming a magic user like in the old tales, but her time in magic school has dimmed her passion. One day, a mysterious man comes to her rescue in the forest, using magic like in the old stories. Despite the fact that he is clearly skilled in magic, he is thrilled by the idea of learning new techniques. Since the only way to do that in this day and age is in magic school, he alters his appearance to school-age and decides to accompany her back to school.

A senior disciple from a countryside martial academy returns as the world’s best! Dragged into a brutal political war, senior disciple ‘Hyeok Musang’ didn’t return after the bloody war ended. No one knew whether he was still alive for 5 years.

Upon barely returning to his hometown, he found his Dragon Tiger Martial Academy being persecuted and destroyed by a third-rate gang.

He thought he could live peacefully with his fellow members after winning the war but seeing the miserable state of his master and fellow disciples, he was filled with anger and guilt.

With the return of the senior disciple, everyone thought things would get better but only for a moment. Things were still happening in his hometown of Yangzhou County. Was the war really over? The head disciple raises his sword against the dangers threatening his Dragon Tiger Martial Academy.

The protagonist, Lee Hansoo, finally reached the boss stage after nine years of playing the game “Dungeon and Stone”, which no one had been able to clear until now.

However, just as he entered the boss room, he saw a notification alerting him that he had cleared the tutorial and that he had possessed the body of the barbarian, Bjorn Jandel, who was a playable character in the game!

In the world of “Dungeon and Stone”, only one city remained standing after the destruction of the world. A labyrinth would open every month, offering explorers a chance to clear it for rewards. In this world where barbarians are seen as useless in everything but battle, a barbarian who does not fight will not be able to survive. If one cannot pay the outrageous taxes demanded by the city, the only fate that awaits is a downgrade in status to a ‘lower-class citizen’. If it is revealed that you are possessing the character you are playing, you will be named an “evil spirit” and killed. The only way for Lee Hansoo to survive is to enter the labyrinth and fight while risking his life.

With the skills he has accumulated over nine years of gameplay and a stupidly strong barbarian physique, he strives to survive in this game!

Adaptation of the 1st movie of Nanoha.

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?

Appraiser Laurent was kicked out from his guild 『Golden Hawk』. It was a result of one-sided jealousy from the guild leader, Lucius. Feeling hurt and crushed by the sudden dismissal, a female mage named Lilianne gave him a helping hand. Together with her, he decided to create a new guild to mess with Lucius. Eventually, those talents that Laurent found through his appraisal skill will create the strongest guild.

Tenjou Yuuya has been a bullied boy since the past.

He lives in the home of his beloved grandfather while he goes to school. As usual, he receives a harsh bullying, and he takes an extended absence from school to have some time to heal his wounds.

While on this long time of absence, he takes the opportunity to clean his grandfather's house and goes to a room he never went before, where his grandfather keep many different objects that he gathered from his travels around the world. While he was arranging the objects, he found a door not on a wall among the objects.

Out of curiosity he opens this door, what he found on the other side was...

She properly held onto the star spoon and became the No.1 Ranker
She is Korea’s first S-rank Awakened, and ranked third in the world’s rankings

One day, all the eighth grade students were transferred to another world.

The princess of the other world summoned them to make up for their lack of strength. The students are threatened and decide to follow the princess, and they are made to take a magical power test to determine their abilities. While everyone is sorted according to their results, Kokubun Kento's result is a flop.

Judged as useless, he is expelled. However, there is actually a tremendous ability lurking within Kento...

The life-size eighth grader Kento, together with his fellow skeletons, aims to rescue his classmates!

A slum where criminals descendants live...
People beyond the border look down and discriminate them as "tribal people".
Rudo, an orphan boy, lives in the slum with his foster parent, Regt, and makes a living using his extraordinary physical abilities.
However, one day, he is accused with a crime that he doesn't remember, and is thrown into the "abyss" that even the slum people fear.

(Source: Pocket Magazine)

Ichinomiya Shingo, a young 25 years old, single, company worker, while thinking of tomorrow’s busy working day goes to sleep. However the moment he woke up, it was a room unknown to him.

He then learned that he was inside a 6 years-old boy and had taken over his mind.

Furthermore he learned a lot from the memories of said boy: he was born as the youngest child (8th son and 10th child) of a poor noble family living in the back country. Having no administrative skill, he couldn’t do anything to manage the vast land his family has.

Fortunately, he was blessed with a very rare talent, talent of magic. Unfortunately, while his talent could bring prosperity to his family, in his situation it only brought disaster.

Yes, this is the story of the boy, Wendelin von Benno Baumeister, opening his own path in a harsh world.

An elf weaponsmith meets a hero who's so strong every weapon shatters in his hands after a single use.

One day, an ordinary high school student is transferred to another world. He raises his level in the other world, successfully defeats the Demon King, and saves the world! With his strongest status, he decided to return to his own world; however, in the world to which he returns, a new "dungeon" has appeared.