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.

I never thought I could become a hunter.

I never thought I’d get the chance.

But that wasn’t the case.

「 The ‘Tower of Trials’ has selected all suitable candidates from Earth. 」
「 Please select your difficulty. 」
「 The rewards you get will be directly proportional to your chosen difficulty. 」

I was given a chance just now.

A special one, at that.

One day, Taro Yamada, who runs a detective business, slips on a banana peel and reincarnates into Tsukushi Shikizaki, the younger brother of three beautiful big breasted sisters who will all die on the same day. As he spends time surrounded by the three beautiful sisters, he finds out that the boy he is reincarnated as will be killed by one of the three sisters ...!?

From MangaHelpers:

This 4-koma comedy manga follows the daily life of the intelligent, responsible 6th grade elementary school student Haruna Raika. She keeps busy as the elementary student council president and the classroom leader, and she even fills in for the teacher sometimes! [tethysdust]

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4-Koma comedy following the super genius grade school student Haruna Raika and her every day life. Where she's the class president, the room leader, the top student, and even fills in for the teacher when they've overslept!

Bi-Kwang is a handsome young warrior who becomes a drooling mess whenever he sees a pretty girl. Out on the road he meets an extraordinary swordfighter with no name who is searching for a legendary master warrior. Bi-Kwang promises to aid the swordfighter if he lets Bi-Kwang meet his beautiful sister. Of course, it turns out the swordfighter is the sister, Hwa-Rin Dahm, and she must switch identities to keep the plot moving along. Bi-Kwang is immediately smitten, and thus we have a triangle involving only two people.

This manhwa was made into a MMORPG.

The story starts with Sanda, a second year middle school student, getting attacked with a kitchen knife by his classmate Fuyumura.
While Sanda couldn't make sense of the situation at first, he gradually came to believe that Fuyumura's actions were just mean acts
stemming off from the latter having a peculiar puberty phase.

But that is all a misunderstanding. Fuyumura actually suspects that Sanda is the descendant of a certain lineage…

In the world of daily full-throttle dedication to his studies, there's Itsuki, a high school boy. The reason he's putting in so much effort into his studies is to reunite with his first love, a girl named Amane, and go on a date with her. While he's immersed in these study-centric days, by a twist of fate, he ends up living together with Amane and her sisters, Shion and Mone...!?

From PRISMS:
Wahhaman is a special robot soldier built ten thousand years ago by the Atlanteans. Found and dug up in present-day Toukyou, he doesn't remember anything, due to a nasty knock to the head he received at some point.

The world is not perfect. Learning to deal with its flaws is just a normal part of life. But there comes a point where these imperfections spawn a crushing realization... that something needs to change...

It's been ten years since the assassination of the Dragon King, the land's most powerful ruler. Off in the corner of the kingdom where tailed dragonfolk dwell, Jio, a human girl, yearns for adventure and an escape from rural life. However, when she meets the mysterious, amnesiac young man Neraid, Jio's life turns upside-down! With courage and curiosity knocking on the door, the two of them find the ultimate adventure waiting for them!! A traditional battle fantasy from a rookie artist begins!!

The virtual reality game “History of the Archana Continent” became part of reality, and “players” who were synchronized with humans appeared to protect the world. Lee Hoyeol, who was an ordinary salaryman, took over the body of the character he created in middle school, “Grandfell Claudi Arpeus Romeo.” Under normal circumstances, it would have been an absolute failure of a career, but Grandfell, whose occupation is a “demon hunter,” becomes extremely proud in front of demons! The only demon hunter in this world, Grandfell (= Lee Hoyeol) starts to make a move!

There are three female masters who are known to be the strongest in the world. The only thing they can’t get their hands on… their ideal man.

“If there are no ideal men, why not raise one yourself!?”

As they skim over the list of candidates, the ladies' eyes all fixate on one boy. A level 0 with no shred of talent…

After being betrayed and killed by the organization he worked at, the infamous assassin ‘Bi-Gwang’ reincarnates as ‘Kim Gyeongsoo’, a police officer. He vows to take revenge on ‘Hwaguksa’, the organization of killers that has betrayed him.

My school life has changed drastically just because she likes me that I barely talk with?!

Yuizaki Shino, one of the most beautiful girls in the school is a classmate of Fujiwara Sandai sitting behind him. It was only on a whim that Sandai helped her out despite spent his days studying and not having a single friend. It was supposed to be―

"I couldn't wait for after school! ....Hey, hold on a minute?"

That day and moment led Sandai to start dating Shino. They spend time together after school, they keep up with each other's hobbies, and they stay over frequently.... She's kind-sweet and always clings to him. And somehow, the other classmates started to pay attention to Sandai, they slowly changing his style appearance, and there was a lot of talks around his belt. He's more unsettled than when Sandai alone before. ....Well, this kind of school life isn't so bad, is it?

Note: Earlier release chapter will be on Monthly Comic Dengeki Daioh before Comic Walker release

Youki was reincarnated in another world. However, instead of being reincarnated as the hero or the demon lord, he was instead reincarnated half-assedly as a minion of the Demon Lord. One day, the Hero's Party attacked the Demon Lord's castle with the intent of defeating the Demon Lord. Of course, Youki was able to repel their attempt with ease. In spite of this, he ended up falling for the cleric, Cecilia, at first sight… The super popular love comedy fantasy set in another world! (Source: Gaugau)

Haise is a young boy who has been gifted with an unknown ability. He becomes an adventurer together with his childhood friend Sasha, but is kicked out of the team for being unable to use his ability and being a hindrance. Furthermore, while continuing his solo adventure, he is caught in a trap and falls into dire straits. Just as he is on the brink of death, Haise's ability "Weapon Master" awakens! It is a power that shakes the laws of the world, summoning weapons from another world! ? An unrivaled fantasy set in another world that begins with adversity!

The Earth’s existence is under threat once more as Itarim, the gods of other universes, seek to fill the void left by the Absolute Being. Sung Jinwoo has no choice but to send Beru, the shadow ant king, to awaken his son’s powers and start him on the journey he once took. Suho must conquer the shadow dungeon and earn his place in the world of hunters as he navigates through a new world against a new evil looking to swallow the world whole.

Masato is a first-year high school boy who is still struggling trying to fit in with his class. He is curious about Rinko, another loner who sits next to him. One day, he accidentally witnesses her secret wishlist, and ends up offering to help Rinko live out the spirited school life of her dreams…

(Source: Comic Fuz, translated)

Weiss, a magician living in the scoundrel-filled Zenith, finds a high elf girl for sale, a higher level elf species that is said to be extinct.

He decides to buy her and raise her as his daughter. The high elf doesn't even know how to speak the language, but Weiss' hard work in raising her seems to be paying off...?

A warm and fluffy fantasy featuring the rookie dad Weiss and his cute little elven daughter!

The weakest demon (slime) who longed to be human is reincarnated as a saint, but with the worst character of all, a villainous noble girl. From the lowest status, hated and resented; an existence where she will be terminated immediately if her true identity as a slime is discovered, she will become a beloved saint in order to live a safe and secure life!