A one-shot from the artist of Eyeshield21, published in Shounen Jump 2009 #22-23 Hokazono Kai, a soldier amidst a nuclear war, was captured by the enemy during a rescue mission. As a captive, he was tortured and tested upon. When the research center is hit by a tsunami and he escapes with a pair of blasters for arms. Kai returns to the japanese military and uses the one-of-a-kind weapon in battle under the codename "Blust".

From Easy Going Scans:

Kael (aka Ryu Shiho) was a menace in his angelic form, harassing other angels whenever he got the chance to. Therefore, the heavenly fathers decided to expel him to the human world, hoping that his behaviour would improve. But... They guessed wrong. His attitude didn't get any better at all, and to top it off, humans now call him "Lucifer" because of his evil deeds and his scary eyes. If he ever wants to see the doors of heaven open up to him again, he has to perform a hundred good deeds… Will this task prove to be impossible?

Zan Ruu lives a carefree lifestyle with his military father and brother. However, one day a mysterious airship attacks the capital, and danger approaches Princess Emma. Zan hurries to rescue Princess Emma, but who appears before him...!?

It's nature vs. nurture when a nerd swaps bodies with the toughest guy in school! Kang Too-Jee and Woo Soo-Choi have swapped...their bodies! After becoming the subjects of a mad scientist's experiment with her latest invention - the quantum teleporter - their bodies are switched, leaving only their minds and spirits intact. Woo Soo-Choi, who was once a model student, must face the life of Kang Too-Jee, a teenage menace. Never having an enemy in his life, he now has to deal with the handful of Kang Too-Jee's list, but will his kinder, gentler demeanor ward off his rivals? Or will survival determine his future? Will he become the hardened fighter that matches his new exterior?

In Change 123, we meet Motoko, a girl with a very strange problem. In order to cope with her 3 adoptive fathers' incredibly intensive training methods, she developed multiple personalities, each with a different martial specialty. But what happens if none of them can beat her opponent on their own? And what further nugget of wisdom will be imparted by the great Kamen Raider?

From all over Japan, Yankee Boys (hoodlums) full of dreams and ambition gather in Gure Tokyo. Then Chagecha appears with his unorthodox "Yanki," and changes everything!!

The grandson of a commissioner absconds and forces a police officer to take him in.

Shik-nam is a student that's obsessed with his grades and studying, so much so that, for him, solving problems and equations can reach erotic levels. Needless to say, his interest in anything other than his studies is near zero.

Then comes a complication. The animal kingdom is furious with what the world has become, so they sent Yegrinna, the dog princess, to punish the sinful humans for dirtying the world by turning them into animals. And out of all the places she appears, it's at our unfortunate protagonist's room.

What awaits Shik-nam and Yegrinna now that their fateful meeting has set into motion plans long since in wait?

From MangaCity:

Of Shaman King fame, here's another series by Hiroyuki Takei about a buddha with the 1,000 arms armor. Sennju, an emissary of the buddha Kannon, appears in the human world to find and protect the reincarnation of the buddha Mirokou. The emissary arrives on Earth just in time to save a young girl from being bullied by some rough looking men. Just who is this girl and will she believe that he's a buddha who was sent by Kannon?

* Also included are three oneshots; two of them are called Death Zero and Itako no Anna.

• Death Zero -
A WWII pilot was shot down and killed, but he still had a promise to keep, that not even death could stop him.

• Itako no Anna -
Anna is an Itako, a priestess who can call upon spirits, learning the trade with her grandmother. One day, they run into a temple to find the master of the temple quarreling with a sword collector over whether the sword may be removed from the temple or not. And she and her grandmother decide to call upon the original owner of the sword and aid the temple master.

Talk about being at the wrong place at the wrong time! High school student Kazuki Muto had no clue what he was in for when he rescued damsel in distress Tokiko from a monster known as a "homunculus." Disguised as humans—who actually eat humans—homunculi are malevolent creatures that affix themselves to people's brains, and once fully grown, the only thing that can annihilate them is a weapon called Buso Renkin!.
Follow the adventures of Kazuki after he discovers that it was actually Tokiko who saved his life by implanting a kakugane—an alchemical device that transforms into a busou renkin—to replace his heart.

Note: Volume 10 includes the pilot story Embalming —Corpse and Bride— along with liner notes for both it and Busou Renkin.

When his family dojo is forcibly taken by Yakuza due to his debt Yachiyomaru with his bodyguard Burai An stand against them in order to retrieve it! Before they know it, in prevailing over trials one after another, a deep affection is born between them...!

From Fallen Syndicate:

Since the death of his family in a mysterious fire, Nanasawa Io has lived as an outcast. Students at his school fear him and animals around him soon begin popping up dead. This brings about an investigation into Io by a group know as the Titans. The Titans goal is to hunt down and destroy Kagetsuki- people who have become possessed by malicious shadows. However, what the Titans soon discover about Io isn't what they expected.

From ADV:
America in the Roaring 20s. On the surface, it's a positive, peaceful time after the violence of the Great War. But lurking in the shadows is a dark element ready to snatch that peace away. Sister Rosette Christopher, an exorcist working as a part of the Magdala Order, has a duty to fight the demons which appear and cause destruction.
But along with her companion Chrno, she usually ends up causing more destruction than the demons themselves! On one particular mission, they meet a young girl with a beautiful voice named Azmaria, who is being targeted by her own stepfather. As Rosette and Chrno work to save her, more is revealed about the relationship between them. There is more to these two than meets the eye.

Tough, lazy, money lover, yet beautiful high school student named Shin Bia. While she's thinking about the eras she suddenly falls into that ancient time period! She had to transform into an elegant lady and while she's there she faces quite an obstacle.

Sachi goes to an all-girls high school, and is quite the clueless one. At her first goukoun, she meets a boy called Yuki-chan, which finally ends 17 years of a boyfriend-less life, and!? -- Manga Updates

Spike, Jet, Faye and Ed - cowboys on the new frontier. Together this band of interplanetary bounty hunters take on jobs that anyone in their right mind would turn down.

Sakurakouji Sakura is a girl who appears modest and graceful but in reality is skilled in martial arts. After witnessing a boy burning people with his blue flame, she is startled to see that the same boy is a transfer student, Oogami Rei. Oogami is a Code Breaker, one who "does not exist". He is a seemingly cold-blooded killer who follows the principle of "an eye for an eye", to "use evil against evil". Convinced that killing is not right, Sakurakouji sets out to stop him and penetrate his icy heart.

From Mad Hatter Scans:

The romance between the Incubus’ aide the Lizard (Gray Ringmarc) and Alice. Once a capable assassin, now a sensible and mature adult. Alice thinks herself just a child beside him, incompatible with him despite her attraction to him… A manga adaptation of the otome game Clover no Kuni no Alice that focuses on Gray.

Oneshot about a unique magical girl.

Cute and child-like high schooler Suzu has an affinity with animals. She wasn't aware of just how much so until the day a large black cat literally falls into her arms! She wakes up after taking the injured cat home to treat its wounds, and finds a naked boy, "Noa" in her bedroom! He claims to be the cat, "Noir".

It appears that someone is after Noir as they are suddenly attacked by cats. Suzu can sense they are being controlled against their will. After their escape Noir/Noa is impressed by her bravery and the fact that she can understand animals--so much so that he asks her to have his babies!

Poor Suzu, what is she to do with this cat-boy who's determined to stay close to her, VERY close? And what of those who are just as determined to get Noir back?