Seigi, a martial arts trained middle schooler, often feels driven to protect the weaker people around him. One day, he defends a homeless man against some punks, and the man gives him a strange tattoo on his palm in return. The tattoo is a secret weapon produced in the arms race between America and the Serinistan Kingdom.
Seigi finds himself in over his head when a powerful girl, using the same secret weapon, violently pursues him in order to retrieve it. His skill at martial arts may not be enough to keep him alive, but will he be able to learn how to trigger the power of his tattoo in time?

Yataro Sarumaru, nicknamed Saru, is an ace in the locksmith trade and is obsessed with girls. This (almost) average teenager is given a hardly ordinary mission which marks the beginning of his adventures!

From Manga Reborn:
Welcome to the 82nd Precinct, also known as the Crocodile Precinct, which is filled with cops that never let go once they sink their teeth into something.
Leading them is Hino Mika, a female cop who's as dangerous as she is beautiful. Follow her on her adventures in this sexy action suspense series.

I was a corporate worker in my 30’s, when I woke up and found that I had time leaped to the spring of my second year of high school. At the time, there was a teacher that I had regretted not confessing to, so I confessed to her in the heat of the moment, and now we’re dating! However, the teacher is one who would make any man a good for nothing person, so I end up being spoiled by her a lot.
While secretly dating my overworked teacher (lover), a sweet school life filled with flirting awaits. A 2nd year high schooler with a 30 year old me on the inside and the teacher (lover) that I want to pamper, our everyday romantic comedy begins.

Zeolith the lazy boy who was supposed to attend vocational school from the age of 15 at with the village's rule. At the age of 15, a vocational school knows its title and chooses a profession from among them. But the titles He obtained were only : "Title of the Highest Peak of the Human Race 【The BraveMan】", "The Strongest Ruler 【The Emperor】", "The title of the strongest magician 【The WiseMan】", "And the other one left "The lowest dislikes scums【Slave Merchant】". None of the titles that were eye-catching. He picked the lowest title 【Slave Merchant】, which is inconspicuous among them and seems to be easy to live.

But, He doesn't know it yet. It's the lowest occupation but it is the strongest for him and the most annoying-tiring ones. A harem struggle to be swayed by a variety of women, slutty alluring girls from elderly to younger ones who are his childhood friend's, the poisonous plantgirl, elves, cat ears adventurer, Loli Demon Lord, et cetera.

This is Tale of The strongest【Slave Merchant】unwillingly makes a big success!

Takayama, a teacher living his teacher's life "going on with the flow", is being scolded for his lazy attitude by Fuyuno, the most talented female student in his grade. In fact, Fuyuno has special feelings for Takayama...? Can the forbidden love between a teacher and a female student be avoided?

I have no friends and no girlfriend, and my family is very poor. But one day I get an electric shock, and I turn into a handsome doctor from the game! And it seems that I have incredible abilities! Soon my life will change!

A couple of decades have passed since Ultraman last was seen in Tokyo, and his kaiju nemeses seem to have gone back into outer space. Former Ultraman Shin Hayata has forgotten that he ever wore the metal suit, though as Minister of Defense he still takes a keen interest in protecting Japan. His young son Shinjiro knows that his dad once worked with the SSSP (Science Special Search Party), but not that that explains how he came to have amazing strength and other seemingly supernatural abilities; as a moody teen he just thinks they make him weird. But then one day a dangerous alien comes back to Earth, and everything starts to become clear. Will Shinjiro don the suit and become the new Ultraman?

A mecha otaku is reincarnated into another world as Ernesti Echevalier (Eru). In this world, exist huge humanoid weapon known as Silhouette Knight. Dreaming of piloting those robots, Eru, with childhood friends, Archid and Adeltrud Olter: together they will aim to become Knight Runner, pilot of Silhoutte Knight.

Hasegawa Kodaka has transferred schools, and he's having a hard time making friends. It doesn't help that his blond hair tends to make people think he's a delinquent. One day, he runs into his bad-tempered solitary classmate Yozora while she's talking animatedly to her imaginary friend Tomo. Realizing that neither of them have any actual friends, they decide that the best way to alter this situation is to form a club and start recruiting.

That is how "Rinjinbu" was formed, a club specifically designed for people who don't have very many friends. As other lonely classmates slowly join their little club, they'll try to learn how to build friendships through cooking together, playing games, and other group activities. But will this group of relationship-challenged misfits really be able to get along?

Chrome was a magician in the hero’s party.

He fought the Demon Lord’s army alongside people like Irina, the lover who vowed to marry him in the future, and the hero, Yuno, who was his close friend.

They were all close companions. However, that was only in Chrome’s mind.

His lover, Irina, became intimate with the hero, Yuno, and Chrome was sacrificed to make the hero stronger. Chrome’s magic powers were snatched away and he was kicked out of the party. Demons surrounded him as he was on the verge of death and he was driven to a corner.

At that moment, Chrome awakened to a “darkness” within himself.

Amidst his despair, he acquired an unrivaled skill.

Now with this skill, he could exact revenge.

Age 41, Oh Joong Seok. A man who did all kinds of misdeeds and put his life on the line for the organisation to gain the highest position. But who knew the end of his life would be so miserable… Joong Seok’s ‘virtuous living’ project starts now, one by one.

A collection of side stories drawn by different artists based on the 4-koma series, Joukamachi no Dandelion.

A high school student, Akito who hates people around him, accidentally took a picture of a passing by young girl during his daily routine of taking scenery pictures. Then, He realized it was the girl who recently transferred to his school. He planned to talked about the accident of him taking the image but... somehow the girl he took looks different?

Large mysterious alien ships have been looming above Japanese towns for three years, filling the sky. Everything changed three years ago. And yet, nothing has changed.
No weapon used against the invaders' ships had any success, beyond destroying part of Japan and leaving its economy in shambles. JSDF is fighting a guerrilla battle against the aliens all over Japan. America is joining the 'war' effort with more aggressive tactics, dividing Japan over the pacifist principle laid out in Article 9 of the Japanese constitution. But this may just be the mundane story of young high schoolers.
"No matter what happens, I won't back down.
At least not until this world filled with lies and deceit crumbles away. The real threat to humankind is not invaders, but me."

From ANN:
Many good things are linked with water, but not here. From the murder of a small child whose body was never found, to the creatures that lurk in the depths. All the tales are linked to water, and each conclude with a shocking end.

From Wikipedia:
A manga version of Koji Suzuki's book Dark Water, illustrated by Meimu. Just like the book, it's a collection of short horror stories linked to water.

Nicola, human, ends up in the Demon World where she is found by wandering trader, Simon. Unfortunately, humans don't seem to be appreciated all that much in the Demon World, but that doesn't stop Nicola from running her mouth all the time.

The 18-year-old Mitsuru Yaegashi arrives in Tokyo planning to become a professional illustrator. While searching for cheap apartments he suddenly gets wrapped up in in the Town Renewal Project, becoming part of the Fight Town. He fights his first fight against a boxer to defend the boxer's grandmother and prove him wrong. After becoming part of fight town he wants to leave but after registering there is a penalty fine and he will be charged by the police for the fight!

A story of an unemployed man that revives after 3 days of being dead. Follow his action-packed encounter with a large criminal organization.

In this world, when human beings reach the age of 12, their bodies gradually change to the genders they wish to be. And by the time they are 14 years old, their appearances change to reflect their genders. But by spring of my eighteenth year, I am still without a gender...