From Storm in Heaven:

Touma heard a voice calling to him that day - a voice calling out to him in a dream. That day, Sousuke forsook his family, escaping with the sword that they had guarded for generations. Touma's dreams weren't supposed to mean anything once he woke up; Sousuke's family wasn't supposed to find him or the sword ever again. But once they meet, fate binds them together - and fate has a funny way of sending all such plans awry.

In the eleventh year of the Meiji era carrying swords was forbidden by the government and those known as samurai were slowly fading away. However there were plenty that didn’t like those changes taking place in Japan and inevitably the crime rates increased. Japan’s only resolve was an inescapable lake prison. While the prison had no other way to access it but only through water, the 3 boys of the Kumo family were assigned to transport the criminals to their new "home". Although... is that the only thing they were doing...?

Twenty years prior to the story's beginning, an asteroid headed for Earth destroys Pluto. Due to Pluto's destruction, the asteroid, which is dubbed Thanatos, becomes temporarily stagnant in Pluto's orbit. Now, in order to avoid Earth's impending destruction, the International Solarsystem Development Agency (ISDA) works on the "D-Project", and secretly creates weapons called "Dragons" after finding a dragon egg under the ocean. However, they soon find out that the asteroid is not their only threat, as powerful, destructive dragons from Thanatos appear on Earth.

"A long time ago--there was a valiant swordsman who came to be known simply as 'the hero'. The people had been suffering at the hands of an evil demon. upon arriving, the hero challenged the demon to a battle...the hero and his companions combined their powers and brought the battle to a swift conclusion. The demon had been defeated! Thanks to them, the despicable monsters who were once controlled by the demon were freed from the demon's evil volitions. With no one around to cause trouble, the island became a quiet place where everyone could live together in peace."

On a remote island in the southern seas lives Dai, a shipwrecked boy who dreams of becoming a great hero. One day, the evil demon king is revived, so it's up to Dai and his friends to stop him and the evil force that revived him. Along the way, Dai discovers the identity of "the hero", the truth behind the evil force who revived the demon king, and Dai's own hidden powers that surface in times of peril.

From Tokyopop: Welcome to Kaya, a world where dragons shape people's lives. Some people, hunters, make a living by slaying them. Others, shamans, control them with incantations. Seur-Chong is a hunter with the Dragon's Curse, a condition which gives him incredible strength and stamina, but is slowly killing him. A mercenary, he cares only for money. But as he becomes enmeshed in the intrigue surrounding those who hire the hunters, he finds himself fighting for a cause more noble than anything he'd ever imagined. Of course if he's lucky, he just might come away with a profit and a cure to his curse, as well... Note: From volume 34 - 39(end), it's called Dragon Hunter - SIN.

Born as an aberration different from the expectations of a chief's son, Fei Long has been ostracized by his own people. To prepare for his destined future role as chief of his clan, Fei Long is sent to Japan to complete his schooling and gain experience mingling with humans. In Japan, he discovers not everything is simple.

This manga has been published one volume per year for 12 years, so the artistic style changes rather drastically as you read further on. It's a chronicle of sorts of Katayama Shuu's growth as an artist.

From Del Rey:

Ten years ago, a terrible virus swept the globe. It turned its victims into bloodthirsty monsters called Dracules, and the only cure is death. Now, with humankind on the brink of extinction, only the elite warriors of the Vius Squad stand between chaos and civilization. New recruit Leila Mikami is one of the squad's most promising young warriors, but she has another agenda: Her parents were killed by a Dracule, and she's determined to take revenge. To do this, she has to find the Dragon Eye - a magic weapon that will make her the most powerful warrior in the world.

Reiji Ozora thinks he's no good at anything--especially schoolwork! Then one day he's introducted to a game called Dragon Drive and gets his very own virtual dragon named Chibi. Small and weak, Chibi appears to be as big a loser as Reiji! But after their first battle, Reiji realizes there may be more to his tiny friend than meets the eyes.

We are in 2053, on a futuristic Earth. Several conflicts took place in the last 20 years. But lately diplomatic alliances that are collected and maintained a fragile peace. Dragon and Weed two childhood friends, former members of a military and spiritual program, have recently become parties to the Common Army of the United States of Europe in charge of maintaining the peace and especially of the worst missions. Missions that will take them to an ancient secret organization they will join soon.

We are in 2053, on a futuristic Earth. Several conflicts took place in the last 20 years. But lately diplomatic alliances that are collected and maintained a fragile peace. Dragon and Weed two childhood friends, former members of a military and spiritual program, have recently become parties to the Common Army of the United States of Europe in charge of maintaining the peace and especially of the worst missions. Missions that will take them to an ancient secret organization they will join soon.

In a world where robots called Familer rule over the humans, a young girl Jusen attempts to stop their dictatorship with the help of a strange man, who seems to know her and her dead mother....

From TJo:

In a world with floating cities know as Eden, a young boy named Jorrne attempts to return to Eden to be reunited with his mother. Born with the destiny of bearing god-killing powers, he is the object of Eden's attention--both as something to study, and something to destroy. Aided by a young magic-wielding girl named Elisiss, her sister Enefeaa, and a swordsman sent from Eden, Jorrne travels to find his way home and to discover the truth behind his power.

People live and then they die, but what matters is how they lived. It first starts around 1932 "she" a girl with bunny ears and a tail; encounter an old man named Jain; they lived together for a short time but they found a little bit of happiness by being together.; Time may pass but "They" continue to live even to the current present day and beyond. But what are they the beings called "EaRth" ?

From Broccoli: Kai Kudou is part of an elite organization of psychics known as Ashurum. Kai is sent on a mission to take custody of other unregistered illegal psychics in the city of Gald. However, he strays from his companions and is taken in by Yuuki Tokugawa, an odd-job-man who is currently working for the guerillas that are in opposition to Ashurum. As Kai spends more time with Yuuki and his mysterious sister Asuka, Kai starts to wonder what Ashurum's purpose is--are they trying to protect the psychics or control them?

Like gods, doctors hold the lives of their patients in the palms of their hand. When doctors go bad who will stand up to them when the law is powerless? E.D.D is the fabled agency that works to rid society of these crooked men. When Dr. Kasahara meets his untimely termination from his hospital he is recruited to the ranks of this mysterious agency. Join Kasahara and Kojima as they Eliminate Dangerous Doctors.

Nakanishi, delinquent just out of reform school, tries in vain to get free of his past. His new job does not satisfy him and he has to suffer the provocations of his boss. One day, an acquaintance from the net introduces him to a game to help him relieve him of his stress: Duds Hunt.
One rule: no holds barred...

Also contains Awakened Dreams, a colored short story with multiple art styles.

This story is about two unique students. One is a infamous delinquent who wants to be a be a gentle person and the other is a smart class president who wants to party and have fun. What do they have in common? They are superheros/angels who fight against monsters in the name of justice!

From SCX-Scans:

Angela wakes up in an abandoned warehouse. Confused and dazed, she has no memory of her past or any concrete idea about how she got there. Through a series of seemingly inconceivable events, Angela learns that she has been chosen as the next vessel for the great demon queen. The only thing preventing the queen from taking over her mind and body is her virginity. Will Angela be able to avoid temptation or will the Demon Queen Lilion be unleashed to ravish the Earth?

From Blissful Sin:

The Waterfalls of Lowen Petergillian -
They are the waters at the end of the world above. Every river, every lake, every ocean; all water arrives here, Protecting the ends of the world and the city which longs for it, Klinia Roe. On a green hill lies the representation of peace and harmony. The world is ruled by the Higher Prince, Al El. His brother, Serlhon, and an adventurer from the world below begin their journey.
Serlhon admires Ashrei and believes that he is the only one who can free him from monotony. Exactly one year ago, Ashrei and a man-beast, Hephaistos, arrived in this world. Different from the Klinia people and Serlhon, Ashrei Rodd possesses dark hair and eyes of a mysterious light.
During his journey with the strong and manly Ashrei, how will Serlhon grow? What secrets does Ashrei hide?

In a world filled with evil creatures called the "Rizoms" that threatens Kam's journey, a teenager who's said to be Laolyth's only son and a possible successor of this lost hero is... ?!