At the dawn of the 17th century, at the end of the era of civil wars, in a world of chaos, the epic Battle of Sekigahara was joined.
One man emerged from the largest battle ever fought on Japanese soil; a terrible warrior of unspeakable power, he was nicknamed 'the unconquerable.'
Kyoshiro is a peaceful medicine peddler who harbors the soul of an assassin. He accompanies a young bounty hunter across Japan in search of a murderer and on a quest to discover the terrible secret of his own identity.

From Dark Horse:
Dark Horse proudly presents another of the crown jewels of international graphic fiction—Astro Boy! Created by the late Osamu Tezuka, a revered animator and cartoonist—who created over 150,000 pages of comics in his career!—and considered the Walt Disney of Japan, his Astro Boy was the first manga series to be adapted to animation and became a worldwide phenomenon, making Astro Boy the Mickey Mouse of anime—a jet-powered, super-strong, evil-robot-bashing, alien-invasion-smashing Mickey Mouse, that is!
Exciting, whimsical, and touching, Astro Boy hearkens back to the classic era of comics and animation, featuring stories that readers young and old will enjoy.

Tamano Kako and Marunouchi Gaku were the best of friends, but Gaku had to leave with his father to travel the world. However, Gaku promised that if Kako waited, he would come back in 10 years and they would go out. However, right after Gaku left the law of Takkoku was created: If you confess your love to someone, you must beat them at a game of ping pong; if you touch each other before the game, that person will be punished. If you win, regardless of the other person's feelings, you automatically go out. However, Kako is called the best ping pong player in Japan and Gaku has never played ping pong before AND he wants to be the one that confesses. How will these two people's love flourish under these conditions? Will Gaku ever be able beat Kako at ping pong?

Long ago, in an epic battle of might, King Phelios defeated the Vampire King Duzell. And as both lay dying, Duzell swore that his reincarnation would find King Phelios' reincarnation and exact his revenge. A hundred years later, the moment of reincarnation has arrived...the only problem is that Duzell has been reincarnated as a harmless house cat. And to add to his frustration, he can't find the reincarnation of King Phelios. Luckily, he has been adopted by Phelios' granddaughter, the teenage princess Ishtar, through whom Duzell may be able to track down who in the Phelios tribe is host to the great king's reincarnated soul.

From Tokyopop: Kai Lucas hires the Bebop crew to find his mischievous doppelganger, but the bounty goes bust and Spike and Jet once again find themselves broke - and hungry. And to add to their woes, Spike ends up mysteriously on the police's most wanted list, either the butt of a joke or the victim of a severe computer glitch. But what's worse, being targeted by every bounty hunter in the solar system, or taking on a kid-genius, a genius puppy and a genus: fatale, species: femme as part of the crew. Well, if Scorpion or the Dragon Head Family doesn't kill them, the extra mouths to feed certainly will.

Our local real estate agency has a secret?! A dimensional travel, fantasy romance about a suspicious owner and a girl who used to be normal.

When he first logs-on, he sees his friend fall into a coma before his very eyes. Now Kite is searching for the answers as to why, and how to save him, inside 'The World'. Based on the original PS2 .hack series, Infection Expansion (Vol.1), Malignant Mutation (Vol.2), Erosion Pollution (Vol.3), Absolute Encirclement (Vol.4).

1. Kohrogi
Mitsurugi Kai is a wizard that must pass a test of character. He doubts himself due to his past. His test is to retrieve paper charms by himself. On his way, he meets Kohrogi Orine who is a fledgling singer who also doubts herself.

2. NOIZ
Hayami Shrou can see into the future of people by touching them. Two years ago he lost his parents in an accident, while his sister barely survived, but remains unconscious. He blames himself, thinking that if he had touched them and saw into their future back then, he could have saved them.

3. dZi:s

4. X-connection 2001

From VIZ:
In the not too distant future, mankind battles over O-Parts, relics from an ancient civilization. It takes a special kind of person to unlock the full potential of these remnants from the past, and a unique breed of humans known as O.P.T.s (or O-Parts Tacticians) become a force to be reckoned with. Unfortunately, O-Parts can be used for good or evil purposes.

Jio is a young boy with a tragic past who only trusts one thing in the world: money. Little does he suspect that he is actually a very powerful O.P.T., and inside him sleeps a demon of incredible ferocity. He meets up with a girl named Ruby, and together they decide to embark on a dangerous quest to discover as many O-Parts as they can. Will Jio help Ruby realize her dream of becoming a world famous treasure hunter? More importantly, will Ruby help Jio realize his dream of--world domination?!

From Tokyopop:

Beings who possess animal-like powers walk among humans in this alternate universe. These mysterious mutants, the +Anima, are shunned by society. Four outcasts in particular--Cooro, a boy with crow-like powers; Husky, a fish-boy; Senri, a bear +Anima; and a girl named Nana, who wields the power of the bat--search for others like themselves while trying to gain acceptance in a world cruel to anyone or anything that is different.

Ageha Shiraishi has been sentenced to death, suspected of murdering her four roommates. In her prison cell as she awaits her execution, she tells her warden, Kyousuke, that she is innocent and that she did not commit murder. Kyousuke does some research, but finds that she is still guilty. Upon his return, he finds his superior tied up and stripped. After setting her free, he finds out that he has been tricked, and it was Ageha in disguise.
Ageha can impersonate anyone to the finest detail, whether it be hair color, habits, or even voice. She becomes the first fugitive of the Talsis Prison and she declares that she will find the real culprit. Kyousuke now only has one clue, which is "the Ageha" (swallowtail butterfly) tattoo on Ageha's back. The chase between the characters involved begins as they move to grasp the truth!

Skyla is a young witch in a world where witches no longer exist. On her way to meet her husband she is picked up by an easily bored old woman and her servant, and a mysterious alchemist. What adventures will Skyla face on her way to Wells?

Sasshi's world is in disarray. His best gal pal, Arumi, is about to move away, and his Osaka neighborhood is being demolished in the name of urban renewal.
However, this little neighborhood has some surprises under its concrete -- it's actually a portal to parallel universes. And when this section of the city is leveled, the portal is cracked wide open. Sasshi and Arumi soon find themselves being hurtled from one strange world to the next! Making matters even more surreal, is the fact that these worlds seem to spoof and mock popular movies, video games, manga and anime.

A series of three manga tankoubon released between 1983 and 1997 that collect several one-shots written and illustrated by Akira Toriyama. The stories were originally published in various Shueisha magazines between 1978 and 1994.

AKB48 Murder Case is a detective manga series adapted from the all-female Japanese idol group’s “Murder Mystery” commercials for Glico’s “Ice no Mi” candy campaign. In the story, AKB48 members discover the body of fellow idol Kato Rena. Maeda Atsuko arrives at the murder scene and begins to handle the case. All 89 current members of the idol group become suspects. The manga series will be 9 chapters long.

Based on the Chinese novel Shui Hu Zhuan, this series is about the trials and tribulations of a band of outlaws during the mid Song dynasty.

It is 1112, China is in turmoil with the present Song dynasty's government and its inability to control its own provincial officials from preying on their people. However, tales of a band of outlaws punishing these abusive officers called "Taiten Gyoudou" is spreading. Their deeds are giving people hope. It begins with an encounter between Suiren, a young village girl believing in the bandits, and "Falling Star" Tai Sou, a traveling swordsman whose skill precedes him.

* Suikoden (水滸伝) is a Japanese translation for Shui Hu Zhuan.

Three travelers visit a post town, a girl and a boy who seem like twins, and one man. Their goal is to seek great power, the Amanusya. In that town, they discover an evil conspiracy involving an Amanusya...

From Watase's Sorai:

This story is about "Yusura" who was left under a cherry tree 15 years ago. She grew up as a daughter of a pharmacist and works as a "Hikeshiya", who can erase sadness from people by using the Kongoumaru, which turns blue as it absorbs people's sorrows, then sends it back to the person guilty of causing the sorrow

From Esthetique:
As Yusura grew older, she acquired a reputation as the "Hikeshiya". Using her Kongoumaru, Yusura would eliminate sorrow from those who were suffering. Literally. One day, a nearsighted young man was being chased by several villainous looking fellows, so Yusura helped him. She took him back to her home,where she learned his name was Samon. Samon was the Daimyou of Sagami. Samon and Yusura have many interesting experiences in Edo Japan. The two run across many unique characters and with their aid have even more unique and exciting adventures.

Fuuko is a normal high school student who went after a boy whom she thought had something "special" about him. Turns out that the guy had a "super" power that lets him control how gravity affects him. However...it seems that it can also affect other people!
Last volume includes a sidestory called H²Love.

The angel Alexiel loved God, but she rebelled against Heaven when she saw how disgracefully the other angels were behaving. She was finally captured, and as punishment sent to Earth to live an endless series of tragic lives. She now inhabits the body of Setsuna Mudo, a troubled teen in love with his sister Sara. Setsuna's misery mirrors the chaos among the angels, and their combined passions threaten to destroy both Heaven and Earth.