An official Japanese manga adaptation for the series was written by Atsushi Baba and serialized in Monthly Comic Zero Sum. As of 2006, Baba has finished development of Episode I's adaptation and is currently working on Episode II.

[From Tokyopop]:

Kaito Yagami is a florist/gardener by day and a hired assassin by night. He kills using poisons from plants to make money to care for his brother who is confined in a hospital.

From Viz:
Kamui Shiro is a young man who was born with the power to decide the fate of the Earth itself--a destiny he can barely bring himself to believe. But as other players in the prophecy begin to gather around him--the "Seven Seals," with the power to protect the Earth, and the "Seven Harbingers," who are fated to destroy it--he has no choice but to come to terms with his fate.

Note: Re-released under the title X/1999.

A girl has to transfer to a new school on a scholarship. She can't refuse because the person who offers the scholarship is her mother's boss. On her first day of a new school, she discovers things are not what they seem.

"Snow White" greets her with a threat in front of the school. She encounters the rude "King" who also forces her to leave like "Snow White." Later, she learns she is "prophesized" to be the "Queen," future wife of the "King," by the "Priest."

What is with this superstitious school?!

A meeting on the bus to the underworld. Fate… Responsibility… To face it all or to run away?

[From Boku-Tach]i:

A compilation of five short stories by Ryu FUJISAKI written throughout his career. Ranging from fantasy to gothic horror, they explore the fantastic worlds contained within the mind of the mangaka of such series as Houshin Engi and Waq Waq.

This is volume 1 of FUJISAKI Ryu's Short Stories.

Volume 1: Worlds
Volume 2: Dramatic Irony

A side story from the main series of Working!!

Note: collected as part of Working!! volume 11.

Saki, an ordinary 14-year-old girl is very stingy and loves money. One day after her parents and little sister and brother mysteriously disappear, she finds 2 guys at her door. According to the handsome one, Takumi, her father lost his job a long time ago, and had incurred massive debts at Takumi's firm. In exchange for saving Saki from a loanshark, Takumi asks her to work for him, to pay of her father's debt. What's a desperate girl to do? go work of course!

1) Wonderful Life (5 chapters) : Takumi and Tomohiro are a very loving couple. Tomohiro is a not-so-popular illustrator, but Takumi is an elite. They only get to meet up once a week and Takumi always leaves immediately after making up. Tomohiro couldn’t help but thinking, “could it be because Takumi’s lazy to look for another lover or…?" 2) Wonderful Days (1 chapter) extra story.

Collection of oneshots:

1) Wonderful Kiss

2) Taboo

3) Ame no Ato

4) Nocturne

5) A Midsummer's Premonition (Natsuyasumi no Yokan)

6) The Heart Doesn't Stop - an extra to Wonderful Kiss

1-3, 5) Ray is smart and dazzling. Like a king. Shingo fell in love with him and even came out of the closet because of him, but he doesn't dare to confess to Ray. And being roommates makes it even worse for Shingo. Will he be able to take a step forward?

4) Guilt
When Miyamoto Shuu's lost student notebook is returned by the devilishly cute Hirose, he's very grateful. But now that Hirose knows his schedule, he runs into Shuu everywhere! Not that Shuu's really complaining...

Humanity wakes up to find that they've all shrunk. Can they survive amidst the hazards that Nature entails?

This is the story of young Alice and her protective dog Poco in this new world.

From Viz:
Humans thought the wolves died off two centuries ago in this bleak post-apocalyptic wasteland. But some survivors lurk among the humans by mentally cloaking their animal bodies. One white wolf, Kiba, scours the land for the scent of the Lunar Flower that will lead them all to Paradise...But will it lead them to a deadly false legend?

Ms. Aoshika is not only divorced, but an underappreciated teacher at her job. But one drunken mishap leads her to witness firsthand the brutal assault and murder of a young man. However, after fainting, she awakens to discover that all of the assailants have been seriously wounded. And to her further surprise, the next day she discovers that not only is the young man, Akira, she met the night before alive, but he is now her new transfer student. This series is based off of a combination of the Wolf Guy manga and novel with aspects from "Adult Wolf Guy "Wolf Guy - Ookami no Monshou" is a modern adaptation of "Wolf Guy (SAKAGUCHI Hisashi)" with a more violent and mature setting.

With God is a comic omnibus that consists of three different stories. The first story is about the underworld. The second story is about the living world. The third story is about the gods. A satire about the world and the fate of gods and men are seen through Korea's traditional gods and several main characters..

Dorothy is on her way to school one day when she stumbles across a witch's mansion. The witch takes Dorothy as her apprentice, and the girl promptly casts a spell on the witch's nephew (she didn't think it would work). He turns into a werewolf, so now Dorothy must learn enough magic to take the curse off of him. She doesn't seem to have much talent for magic, though....

In Chi-Ran's "Witch," a teacher pursues her student.

A young woman gazes wistfully off of her balcony, gazing at the beautiful view. She enjoys drinking beer on her days off, and has noticed someone growing flowers in an empty space on the first floor. One day, she receives mail that does not belong to her; and after happening a second time, she returns it to its owner. And that's when she meets a special man...

A cute and sad story about two childhood friends, a promise and fireworks.

[From Kotonoha]: While it’s not explicitly mentioned in the story, it’s believed that Suzumega is at least somewhat related to Abara since it features the Gaunas.