From MangaHelpers:
In this world, there exists individuals known as "Majin": supernatural beings able to wield unique powers. They live among the normal human beings, but the divide created between the Majin and the normal human race is severe. There exists a school known as Dangerous, where the population ratio of Majin students exceeds that of any other high school. In this school, two groups known as the "Banchou Group" and the "Seitokai" face each other in war, but they have created a balance of power, resulting in a temporary peace. Now, with the inclusion of new students, this balance of power is about to collapse. One of the "normal" students, Ryouseiin Otome is forced to choose sides before the beginning of Armageddon.

Mystery writer Mikazuki Subaru, who isn't good at dealing with people, finds them to be a disturbance when it comes to building his imaginary world. One day, he chances upon a stray cat and feels inspiration strike so he brings the cat home as his muse. Can watching the inexplicable behaviors of a cat form material for a novel?
Featuring perspectives from the human's point of view as well as the cat's.

Collection of short stories about boobs by various authors.

By the order of the king, Oliver and his comrades head toward the demon king to subjugate him.

The true identity of the easily defeated demon king is a beautiful girl, Cecilia. Oliver falls in love at first sight, and despite his comrades’ objections, he just took her home with him!

Oliver spoils Cecilia at every turn, but unfortunately, not a single one of his thoughts has reached her.
Will there ever be a day where the hearts of the hero and the demon queen align…?!

Youichi a gruff, taciturn boy who attends a school full of delinquents; Chikage is naive, friendly, and student of a prestigious academy. These two very different boys become stepbrothers and suddenly find themselves living under the same roof. This is a comedy about their day-to-day lives.

Kouki and Nao are siblings that harbor feelings for each other that they're not allowed to express since they're 'twins'.
"I locked away the key gently in my heart but mom reveals a secret about Kouki!"
"The person I like is my twin!" Pure 120% romcom, start!

She's a teacher in training and the only female at this newly established boy's school. As expected she get's a lot of attention but how will the rather green and inexperienced teacher react when they boys begin to want 'more' from her...?

The internet is full of rumors about the Neet and Hikikomori genius gamer siblings Sora and Shiro. The two go as far as to refer to the world as a "shit game", but then one day a young man calling himself "God" summons them to a parallel universe. There, God has forbidden war, and "everything is to be settled with games". Yes, even the national borders. Driven into a corner by other species, the 'human species' is down to its last city. Can Sora and Shiro, these related failures of society, become the saviors of humankind in this parallel world?

How do you kill a target that can't die?

Even worse, how can you possibly kill said target if they give you food, clothes and a hot shower?

Will Miss Killer be able to kill the mafia boss Leonard Amaretto? On top of that... will she be willing to, even when the old man asks her to do so after receiving the kindness he dispenses her?

Welcome to the academy of Demons and Dungeons!

The story in Ninku is about an odd-looking 12-year-old boy named Fuusuke who is a powerful warrior from the Ninku school of martial arts, a style that mixes ninjutsu and karate.

It is explained that before the present time in the story that those who could use Ninku were targeted by an evil empire and the Ninku corps were formed to combat the menace. The names of the corps were taken from the twelve Chinese zodiac animals and each captain of the corps was called the zodiac animal Ninku master. When the war was over, the Ninku were defeated and almost all of them were killed (except for a few corps' captains) since they were useless and were also dangerous for the rulers. At the beginning of the story, three years later, Fuusuke, the young former captain of the 1st Ninku corps and controller of the wind and Hiroyuki, his flatulent penguin, start searching for the other Ninku captains, each of whom can control various elements. However, a new group of Ninku users has arisen and are trying to take over the world. Fuusuke and his penguin must defeat the new Ninku empire with the help of his old comrades.

Source: Wikipedia

Things about girls that adolescent boys dream of with full delusion. While saying, “A man is really stupid!”, Yuime Nemuri likes him, so she can’t refuse him when such things take place! Instead, it all seems to be a mess…?!

Kodo Ikusei Senior High School, a leading prestigious school with state-of-the-art facilities where nearly 100% of students go on to university or find employment. The students there have the freedom to wear any hairstyle and bring any personal effects they desire. Kodo Ikusei is a paradise-like school, but the truth is that only the most superior of students receive favorable treatment.
The protagonist Kiyotaka Ayanokoji is a student of D-class, which is where the school dumps its "inferior" students in order to ridicule them. For a certain reason, Kiyotaka was careless on his entrance examination, and was put in D-class. After meeting Suzune Horikita and Kikyo Kushida, two other students in his class, Kiyotaka's situation begins to change.

Fuuto Detective (風都探偵 Fūto Tantei) is a manga adaptation and sequel of the 2009 series Kamen Rider W which will be published in Weekly Big Comic Spirits. Written by Riku Sanjo (W, Fourze, Drive) and drawn by Masaki Sato. The Dopants in this manga are designed by Katsuya Terada and supervised by Hideaki Tsukada.

All it took was attending one amazing rock concert by “Blue Bears” for Fujiwara Motomu to wish he could become a rock star. When he bumps into Uozumi from “Blue Bears,” he boldly declares that he wants to be part of the band! Uozumi accepts his offer...but first, Fujiwara must prove himself by being the best musician at the Japan Academy of Music (J.A.M.)!

By some miracles, Fujiwara gets accepted into J.A.M., despite being a total novice at guitar-playing. But his journey is far from over! The academy pairs up students, who will then have to give a live performance! Fujiwara’s partner, Hoshikawa Uta, is a talented girl, but has terrible stage fright! Will the duo be able to achieve their dreams?

Based on the Linux operating system variant Ubuntu, this "slapstick school comedy," three high school students—the fervent UNIX user and club president Akane Kisaragi, the hardcore gal-game otaku vice-president Masato Midou, and the doujinshi-drawing Mac fan Risa Shiina—are learning how to use Ubuntu in their systems adminstration club.

Mochizuki General Hospital boasts some of the most well-trained (and well-endowed) nurses in town. But though these ladies spend much of their day battling disease, their after-hours are spent fighting a very different sort of disease…Under the leadership of the hospital chairman, a handful of staff members and local teenagers form a group of mercenary assassins, targeting the “cancers” of society and excising those individuals before their wickedness spreads.
(Source: Yen Press)

Suzume works as a maid in an English manor house. Due to a certain incident, she ends up living in a small apartment in Japan.
So where does she find comfort in as she began living overseas by herself for the first time? Japanese cuisine!

The four-panel manga follows the everyday life of Mayu Morita, a girl who is exceedingly gentle and thoughtful, to the point that she does not say much of anything to anyone in high school.