Based on the visual novel of the same name. In 1986, between October 4th and 5th, members of the Ushiromiya family gather on the secluded island of Rokkenjima to discuss the division of the family's massive fortune upon the impending death of the family's head, Kinzo. However, when a typhoon traps the eighteen people present on the island, six people are mysteriously murdered. The remaining people struggle to survive as the murders continue, supposedly by the will of the legendary Golden Witch, Beatrice.

Other manga:
+ Triage X manga
+ Sidonia no Kishi manga

From Aerandria Scans:

"The moment you open the letter, you will be cursed. After reading the letter, you have to make two copies and send it to a close friend within 24 hours."

Everyone knows what it's like to pass notes in class. People carelessly write about things like love or gossip. One day, everything suddenly turns out evil...

From Seven Seas:
Sumire Takahana is a seemingly normal school girl cursed with the ability to see malevolent ghosts known as Viruses. Her life hits a crossroads after a run-in with a gothic lolita-clad monster killer for hire, Lucia Nahashia. Not content to stay on the sidelines while these Viruses prey on the weak, Sumire reluctantly decides to join forces with the mysterious, eye patch-wearing Lucia to hunt down these Viruses before they can hurt anyone else.

From Storm in Heaven: Koizumi Kanna is infatuated with the man who came to the restaurant she works at and ordered a burger with no onions. Little does she know, Toujou Ren is interested in her as well, but for a different reason. Kanna just so happens to be the mirror image of a woman he knew a very long time ago. It is for that reason that he saves her when she nearly dies in a car accident. But the life he gives Kanna is far different from the one she lived before, and she's not certain it's the kind she wants...

Riu is the only daughter of Kioka Saenji, the 11th generation head of the famous Rokugi Kabuki theatre house. Since she was small, she has had a recurring dream about a man under the red moon - a man she didn't know, until she attended one of the performances of her brothers. The man turns out to be Rui, one of the heirs of the Akatsuki house.

The Akatsuki House is distantly related to the Rokugi House. Just recently, the 10th head of Akatsuki House, Ashikawa Enjuuro, died. The family is on the process of choosing his successor among the three adopted sons, one of which is Rui.

What relation will Riu have with Rui? Why does she dream of him dying every night?

Kominato Riku is a high-school student who aims to be a game designer. The girl next door is his childhood friend, Haju, who is in love with him, but he has fallen head over heels for the school idol Riko. And lastly, there is the transfer student, Nodoka. With that all said you’d think this is the start of some love-comedy harem, but a rumor spreads that Nodoka's received a message that says, “you will die soon”. Riku and the gang’s fate will change in a major way. Who will live, and who will love?

Collection of short stories, from 1979-1995, including;

- SOS! DAITOKYO TANKENTAI
- RUN
- SPEED
- NEKO HA YOKU CHOPO NI KAETERUKU
- ABUNAI! SEITO KAICHOO
- HOOMONSHA
- SUN BURG HILL NO OMOIDE
- EIYOO MANTEN episode I
- EIYOO MANTEN episode II
- MADOROS KUN
- SUKIYAKI
- NIGHT FLAMES
- Homonsha (VISITORS)

[From Tokyopop]: Beautiful Hyo-Bin Na is the new girl at school who everybody wants to meet. But Hyo-Bin is no normal high school student and she certainly has no desire to be popular. You see, she's cursed with supernatural abilities and by a dark and dangerous past. Everyone she has ever gotten close has ended up dead. Hyo-Bin doesn't want to go through the pain of lost friends and lost love again, so she vows to not get too close to anyone or to date anybody at her new school. But, alas, and of course, it isn't quite that easy ...

From Vampire Knights:

Since youth, Shin had a special ability to foresee dangerous situations. When his sister, Nao, was kidnapped by the people from a research center, Shin finally realized that he was not actually human, but a ‘virtual beast’ created in a genetic experiment. To solve the complicated mysteries revolving about himself and save his sister, Shin and his good friend, Tatsuki, embark on a perilous journey.

Violet is a girl whose mom pays no attention to her, or her father. What Violet wants more than anything else is a pretty dress and cookies that the other moms make. Then, one day, she meets a lady at the park who gives her what she desires...

Those who have wet their feet in the underground society must pay back sooner or later. When a handsome mafia boss decides to become an elite bodyguard, the game of seduction and anti-seduction begins!

Set in the near-future, a little-understood form of matter known as "Mile One" allows a powerful and influential Japanese family, the Gowa, to produce a bipedal weapon which they refer to as a Tactical Armor (TA). At this time, a war breaks out between the US and the fictional Middle East country of Belgistan, much like the Gulf War. When US military forces attempt to seize the capital, they are systematically wiped out by what appear to be rival TAs. The Gowa Family seizes this opportunity to demonstrate their weapon system, and civilian pilot Yuushiro Gowa and the military squad to which he is attached are deployed to Belgistan. There, he meets rival TA pilot Miharu, with whom he seems to share a deep spiritual bond.

The village’s most infamous man, Shan Gou, used to go up into the mountains to hunt wild animals every day. Recently, however, something seems to have frightened him so much he isn’t willing to even stay out late at night...

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.

[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 Stage Storm:

Venice, 17th century. Safinia lives a simple and happy life with her father, a renowned artisan and his apprentice Angelo. Everything changes when a man named Ricardo Carrá comes looking for her saying the rich Poliziano family wants her as the lady's companion who has "a weak constitution". However there's more to it than it seems and after her refusal, her father is mysteriously accused of robbery...

Straight Taki and gay Goh (partners and lovers) form an expert team of bandits hired by the police to steal from the mafia. In July of 2005, DMP introduced one of the most popular creator & ground-breaking series: YELLOW to the yaoi industry, cementing Tateno as a yaoi fan favorite. Finally, Makoto Tateno has created a mini sequel series starring her two beloved characters, which have never been published in print, until now! _________________________________________________ After a 2 year break from their job as "Snatchers" they are suddenly called back to solve another case.

Alexey Brantov alias Face, grown up among an important group of assassin of the shadows, the "Black Crows". But this young ephebe is in reality king of Lucianna, alive people hidden further to the drama arisen within the royal family. He will live with the former member of the "BC", Zephyr until the day where by boredom, Will begin to cross-dressing and humiliate the noble persons coming to the inn. But his meeting with the prince Frantz Rukia will change its fate. Well in spite of him, he will become the new queen of Glasgowi, A quite particular queen because he is not only a man, but also a assassin in the soul and the king of archangels ; a being half-man and half-bird endowed with powers. Ryo will he manage to discover who is really Face ?