From Del Rey:
Cyan is a teenage cat (in cat years!), and when his beloved young master falls ill, the parents abandon Cyan in the basement of a luxurious apartment building. Now Cyan finds himself smack-dab in the middle of the biggest feline territorial battle in Japan.

In this school fantasy story set in the distant future, creatures contaminated by pollution have overtaken the land, forcing humanity to live in isolated mobile cities called Regios. One such city named Zuellni is a self-contained school in which freshman Layfon Alseif has just enrolled. Layfon reluctantly joins the 17th Martial Arts Studies Unit led by the third-year student Nina Antalk and embarks on a series of adventures.

An original side story that focuses more on Nina.

From MangaHelpers: Puzzle fanatic Daimon Kaito has been crazy about solving brain teasers, puzzles and riddles his entire life. He attends the prestigious Root Academy with Nonoha, but spends most of his time creating and solving puzzles. Kaito is one of the few genius teenagers that attend the school who has been given the title Einstein, along with his other just as brilliant classmates who were given the titles Galileo, Edison and Da Vinci. Together, they attempt to solve a puzzle that, since its creation centuries ago, has never been solved. But the genius students soon realize that there are dangerous forces behind the impossible puzzle. [vyc]

Pai is a strange, provincial woman who has come to Tokyo from the Tibetan highlands. Somewhere in Tokyo is a young man who can help her in her quest... to become human!
When Pai finally finds Yakumo, they set off in search of the artifact that can transform her, but it will take all of her mystical powers to keep the reckless Yakumo alive, even if she has to steal his soul to protect him!

Winner of the 1993 Kodansha Manga Award for Shounen.

From Cireus-Scanlations:

Tanlou is one of the roaming Blair tribe: a stubborn lot who keep to themselves and frown upon interaction with "outsiders". He, along with six of his friends find a young princess from a nearby castle, wandering in the forest. She begs them to help her, but their help comes with a price. Tanlou is cursed by the head of his clan, and the seven men are banished. Still, they feel compelled to help her. The princess' name? Snow White. After a vicious battle to regain Snow White's kingdom that leaves the princess gravely injured, the evil queen unleashes her wrath, and the unthinkable comes to pass when two of the seven mysteriously disappear, leaving behind five bereft buddies who have no idea what has become of their comrades.

And thus begins the plight of Tanlou and his friends...

From Viz:
Somewhere in the desert lies the world's greatest treasure: the 12 Rings of the Dead, the only source of the mysterious substance Zombie Powder, which can raise the dead and grant eternal life. Into this world stalks Gamma Akutabi, a man with a metal arm and a six-foot chainsaw, cybernetically enhanced master of the legendary martial art.
But it takes more than one man to find the ultimate prize. You need a team: super-gunman C.T. Smith, knife-slinging teenager Elwood, and brilliant (and impossibly big-breasted) journalist Wolfgangina. Against an army of crooks and killers, against runaway trains and super-powered madmen, they'll need all their skills... but the most dangerous thing in the west might be the Rings themselves.

Includes 3 one-shots:
- Ultra Unholy Hearted Machine Vol 2
- Rune Master Urara Vol 3
- Bad Shield United Vol 4

It's the year 2269, and April Enus is working as a spy for the Alliance. She's known as "Venus" because of her special power: fatalities don't seem to happen when she's around. But is this power a blessing or a curse?

In a parallel world where the strongest of the non-diary holders "Akise Aru" takes the place of Yukiteru (the protagonist from Mirai Nikki) for a few days, what will happen?

Fujieda Memori works his butt off every day as a 'charming and competent' bodyguard for his brother's company. One day, a guy called Yuuki Shin appears, claiming to be interested in becoming a bodyguard. To test his ability, Memori has to work together with him. Memori was about to trust Yuuki, but then he discovers Yuuki's real identity...!?

The stage is Kyoto. Takiguchi Tsuina is a girl possessed by a curse that brings misfortune upon all those she falls in love with. Such a girl falls in love at first sight with the newly transfered Mikado-sempai, who is in fact an exorcist of the Department of Prevention of Supernatural Disasters. In order to walk along the same path as the one she loves, Tsuina becomes an apprentice of the wandering exorcist, Izuna.

Note: This is the story of the two newly appeared characters, Takiguchi Tsuina, and Mikado Mine (who make their debut in volume 8 of the original series).

Vampires exist. It is the duty of Hellsing, an organization sponsored by the British government, to hide that frightening fact and protect the blissfully unaware populace. Along with its own personal army, Hellsing also has a few secret weapons. Alucard, an incredibly powerful vampire, has been controlled by Hellsing for years. Although he dislikes being a servant to the Hellsing family, he certainly enjoys his job as Hellsing’s vampire exterminator. Seras is a fledgling vampire and a former police woman. Although reluctant to embrace her new self, she is still a valuable member of the organization. Integra Hellsing, the current leader, is usually fully capable of fulfilling her duty, but lately, vampire activity has been on the rise. Unfortunately, the cause is more alarming than anything she could have imagined. A group long thought dead has been plotting in secret since their apparent destruction over 50 years ago. Plotting to plunge England, and perhaps the entire world, into war.

A kingdom's ruling faction sends out a secret agent to find the kingdom's missing prince. Love begins to grow between the missing prince and the agent sent to find him but political intrigue intervenes upon their arrival in the kingdom.

For some reason, the sadistic demon prince Beelzebub is living in the human world and attending high school. He begins a strange friendship with his classmate Hanako, after she defends him when he gets beaten up by a gang.

Note: Original language image (i.e. no English subtitles) is unavailable.

From SCX-Scans:
Kyuno, who's aiming to become a Sister, just became a Sister-in-training, and started her dormitory life with Ginger and Alicia, aiming to be the same, however...

Rain Jewlitt, known as the Methuselah, is a spaced-out, immortal, 624-year-old man dressed in priest's clothes. He's got eternal youth and a large price on his head—put there by those questing after the secret of his immortality.

Machika Balfaltin is a tomboyish, energetic 14-year-old girl who, upon the death of her grandfather, sets out to kill Methuselah, the one bounty her assassin grandfather, Zol the Grim Reaper, couldn't kill. Instead, however, Machika ends up being saved by Rain again and again from other aspiring bounty hunters attacking them both.

Sound like the beginnings of an odd relationship? You won't believe where their journey takes them...

'S' is a known as a bully caretaker, who avenges her bullied clients -- for a price, of course.

However, in reality, 'S' is a nerd named Kang Song Ih, with a twin brother named Kang Ah Eul, whom she loves above anything. Ah Eul attends Chungha High School, a famous and expensive school, but over winter break, he attempts to commit suicide. Song Ih, determined to understand why her brother tried to kill himself, attends Chungha High School, pretending to be Ah Eul -- uncovering the reasons why Ah Eul was driven to suicide, including one mysteriously handsome but "bad" guy named Suh Ga Yoon.

Read as you follow her life while staying in an All-Boy's school and living in a dorm -- with a male roommate, who happens to be a famous singer and someone she as "S" had once nearly beat up.

Watch out! Whoever bothers "S"'s brother, prepare to face her!

Kobayakawa Sena (Eyeshield 21) meets Monkey D Luffy (One Piece), Naruto, Son Goku (Dragonball), Bobobo (Bobobo-bo Bo-bobo), and Toujo Aya (Ichigo 100%) in this short adventure that serves as an advertisement for the game with the same name.

From Forever More: After his parents were killed in an accident, Yayoi assumed their hundred-million yen debt. He was being pursued by collectors when a mysterious man, Kazu, appeared before him and offered to take on the debt for him if he would become Kazu's...

A slacker high-school student gets pulled into a world where he is named the "Dungeon Master" and can control everything that happens. He can even make it rain money! It's in this world that he meets a young, traumatized girl who's memories have been erased. With her help, he creates a new game world to escape his boring school life. Everything seems to be going fine until they encounter a lethal bug in the game's programming.

Satoyama Katsuki is a carefree 15 year-old high school kid, and a pretty lazy one at that. However, he secretly has a crush on a girl who happens to share his name: Mizutani Katsuki. Upon finding out that Mizutani's father used to be a pro-boxer, and she herself infatuated with the sport, he reluctantly joins a boxing gym in order to impress Mizutani. Satoyama is quick to find out he may have the blood of a genius boxer running through his veins...