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?

Anise suddenly gets a message on her phone one day asking whether she'd be willing to lend her their aid. As if responding to her thoughts, it chooses for her and she finds herself suddenly summoned into the world of an otome game. While Hime is dumbfounded at her situation, Hime, the girl who is summoned with her declares, "I'm the saint!" As a result, Anise is treated as useless and driven out.

If things were to continue to go on like this, then the general of the neighboring country will die, Hime, as the saint, will take over, and a tragic ending will be met. To avoid that and take her life into her own hands, Anise resolves to save the general, change the scenario, and just settle down somewhere, or that was what she planned, however...

Links:
Original Web Novel: https://ncode.syosetu.com/n0469ft/ (Japanese)

Hyakkaou Private Academy. An institution for the privileged with a very peculiar curriculum. You see, when you're the sons and daughters of the wealthiest of the wealthy, it's not athletic prowess or book smarts that keep you ahead. It's reading your opponent, the art of the deal. What better way to hone those skills than with a rigorous curriculum of gambling?
At Hyakkaou Private Academy, the winners live like kings, and the losers are put through the wringer. But when Yumeko Jabami enrolls, she's gonna teach these kids what a high roller really looks like!

Note: Placed 3rd in the DaVinchi x NicoNico Tsugi 2016 Manga Awards.

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?

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.

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.

Basically Title

Author's Twitter: https://twitter.com/RamchiPixiv

Amaguri Senko is a high school girl with a cool personality; she is also a massive pervert. She openly reads porn and masturbates, and isn’t perturbed in the slightest at the sight of penises and such. The story is about two adult men that come to live and work for her father, who runs a company that does various oddjobs, which she helps out with. And the various forms of sexual harassment to which she subjects the one which she has taken a liking to.

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.

When there is no way out, the way is in.

Doomed to die next month, our terminally ill protagonist Chan is too frail and defeated to try anything at all.

No wonder he chooses to plunge himself into an RPG world he is only too familiar with.

Why should this run be any different?

Well, other than the fact that he will wake up inside the game and get struck with an existential epiphany that will make him fight tooth and nail to give Nox, his equally ill-fated RPG persona, a better chance?

Maybe, it’s not over until it’s over.

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.

She worked herself to death in her past life, but then she was reborn in another world as the villainess Ronia! As expected, her engagement is broken and she's expelled from society, but now she takes that chance to live peacefully, and even opens a cafe with the help of her fairy comrades, which is becoming unexpectedly popular with beast-kin...?

[That girl is cute…but dangerous] The girl sitting next to me at the start of the new semester is the rumored Jirai girl… but… is Chihara-san really the [Jirai] that everyone says she is?

Kugayama Hajime, a boy living in the countryside, comes back to his old classmate Momose Akira, whom he used to admire.

Just as he is about to watch her from afar and enjoy his sweet and sour youth, Akira makes an unexpected approach.

And there was a “fate” that was more than he could have imagined.

Tokimori-san is a beautiful and successful woman. But when she's off the job, she tends to be a bit absent-minded! Living together with the charming Tokimori-san always makes me nervous!

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.