This is a tale of modern-day magical ninjas. Reito is just an ordinary guy, who wants to maximize his own happiness by being cool and not thinking of others. However, his stupid, annoying, large-breasted neighbor Iona Shiragami keeps trying to be his friend. One day, he learns her secret: she's a ninja who guards a powerful family ninja art, and other ninja are here to take it from her. When Reito is killed in the crossfire, she uses her magical ninja art to bring him back. However, the art also turns him into a super powerful monster. Will he be able to turn back to how he was before, and what will become of his life now?

(Source: MangaHelpers)

The protagonist, an egocentric man who's led a successful life as the CEO of a company in modern society is murdered and reborn as a beautiful lady named Paril from a noble family in a fantasy world. Once he wakes up, (now in the body of Paril,) he finds out that he's now in the body of an "inferior being" and that all his wealth, achievements and successful life have vanished. Therefore, he decides to rebuild everything from scratch and make it to the "top of the pyramid" in this parallel world.

A powerful sorceress, Feicia Rand Philistin, once tried to conquer the nation of Shurian. In her wake of terror and destruction, a man stood up and rebelled against her oppression and domination. The people called him Maian the Brave (Yongja Maian) and it was he that sealed the evil sorceress.
A thousand years later, Fenix Maian in the biggest mistake of his life releases the sealed sorceress that his ancestors have tried so hard to keep imprisoned.Now he has to keep the sorceress from taking over the world once again...
(Source: SolitaryCross)

Having been born in a secret government laboratory that cultivated esper (telepathic) powers within humans, Shuuichi and two sisters, Sumire and Katsumi, are forced to endure a difficult life as test subjects until their escape. Years later, these siblings are still being sought after by unknown organizations that are after Shuuichi powers as he is what they refer to as the “zero-sample” with the ability to cause “zero-shock.”

Promo comic by Artlim Media for the second season of the Freezing anime. Recap of Freezing season 1.

Weak, bullied, and pessimistic about life, that's Setsuna Kashiwagi. On the verge of jumping off a bridge, a mysterious man appears behind him and offers the contract "10 million yen in exchange for your life in a year." Skeptical at first, he accepts. Waking up the next morning, thinking it was just a dream, he notices 2 beautiful women sitting beside him. They are Kanna and Rena, Oni princesses here to claim his heart in a year.

Taehyun Choi lives with his sister Hakyung Choi. You could say they have a normal life. On the one hand Hakyung has a good job and is successful, however Taehyun isn't good at studying.

His life takes a drastic change when he accidentally learns that he and Hakyung aren't siblings. Which is why he decides to confront her, but then she suffers a serious accident and loses her memory.

This is where everything will change, because those feelings of kinship will become much more important.

(Source: MU)

11 years ago, Eun Sung-min was one of the few survivors from a village that experienced the "Evil Phenomenon". He and his maid were saved by the mysterious Phantom King and his group, Phantom. Now the Special Environmental Protection Agency is searching for the answers to what happened on that fateful day, and how to combat the "Evil Spirits" that caused such mayhem.

By Dredshi Scans
Prologue (From Volume 1):
The great 'incident' of Yong-Ah city has made the whole world acknowledge the 'Evil Phenomenon' as a disaster and the enemy of humanity. 11 years later, the survivors have reconstructed Yong-Ah city, overcoming the horrible incident and finally leading a peaceful life.

Eun Sung Min, living with only the family maid, is one of those survivors. But there was a faint memory that resurfaced through that painful memory... "Phantom King"; and, a stranger who appeared one day, Choi Seung Cheol, explaining the dangers of the new 'Evil'. He convinces Sung Min to fight the covered truth about 'Evil'.

What choice will Sung Min make in the face of this upcoming danger....?

A young man finds and returns a lost wallet and cell phone to a beautiful young lady, thus begins the destined relationship between two strangers. Sound typical? Well then, how about making the young lady the young man's future homeroom teacher, and give them both a twisted sense of right and wrong. And just for kicks, let's have the young man help himself to a self proclaimed reward from the lost wallet before returning it… but of course, this scenario wouldn't be complete unless the young lady was very unforgiving when it came to teaching one of her students a lesson on morals.

Gi Yuh is the leader of the strongest gang in his high school. He lives together with his younger sister, who seems to love him.
When saving the beautiful Ha Na from a truck he instead gets injured and lies in coma for two weeks. During these two weeks he dives into a strange dreamworld and after his recovery he is not the same anymore. He regularly dreams about what seems to be a past him. To find out what happened to him he asked his teacher for help, who has friends, who deal with fortunetelling and supernatural powers. Here he finds the answer to his strange condition: He is supposed to be a "higher" ghost", who takes the position of a dead or soon-dying person.
(Source: MU)

Black God is about a 19-year-old aspiring game designer who meets a Mototsumitama (divine spirit) over a bowl of ramen and ends up losing an arm because of it. He wakes up the next morning with the arm intact and discovers that every person's fate is split between three identical bodies known as "triple-liners". If two of these "doppel-gangers" meet each other, they will die and their luck will be transferred to the third doppelgange, who becomes a root.

FROM BH007:
A semi-generic fantasy-action manga.

The story centers on Kazuha Aoi's second year at West Genetics and Yumi and Elize's third year at West Genetics as part of the elite Numbers unit.
(Source: Wikipedia)

From ADV:
Woo Sang High is under attack! The entire student body is being terrorized by a duo of frightening bullies who have recently been released from a juvenile detention center. Guk Do and his muscle-headed sidekick, Chung Ki, are on a rampage and they have set their sights on Saang Tae, a brawny teenager with the courage of ten men. He alone will battle the fearsome duo, but there’s only room for a few at the top, and only one man can be The Boss.

The Freezing Pair Love Stories manga tells the story of how the various Pandoras and Limiters met.
(Source: ANN)

Aflame Inferno is about a self absorbed high schooler, Kang Shichan, that gets caught in the middle of a battle between demons. Injured severely and near death, the demon Inferno merges with the student to save his life. Together they win the battle to discover that they are inescapably joined. The only hope of every being separate beings is to close down 1,000 Invento Hells and find the right spell of Resurrection. Can Kang Shichan balance hunting down demons with his school work?
(Source: MU)

Inamine-kun, an aspiring young manga artist, is a total failure at whatever he does, but some of his work has caught the eyes of a busty beautiful mysterious editor from a B-rate magazine. Will he turn around his fortunes through her? Will he form a relationship between boss and subordinate? Read Koimoku and find out!
(Source: MU)

A prequel to the original series, the story centers on Chiffon Fairchild's first year at West Genetics prior to her becoming Student Council President, and also explains the origin of her title, "The Unmatched Smiling Monster".
(Source: Wikipedia)