Alive 1 by Tadashi Kawashima. 

In this first volume of high-school horror manga, some strange otherworldly virus is making people commit suicide. Those small group of people who survive are baffled – or is there something more sinister at work? It's a fairly typical setup, but this does have some entertaining plot aspects going for it – a few relationships I see becoming more complicated, and enough blood and gore to keep the slasher fans amused. I'll probably pick up volume 2 when it arrives.

Parasyte 2  by Hitoshi Iwaaki. In this second volume of the body-snatching horror manga, Shin finds out that his parents have been attacked while on vacation. Taking time off school to investigate, he strikes up an uneasy friendship with a local girl and finds another human who is infected but not overtaken. There's plenty of action and gore, and new demonstrations of the parasyte's abilities as Shin struggles with his own humanity. This is a thoroughly enjoyable series, and I eagerly look forward to volume 3.

Parasyte 1 by Hitsoshi Iwaaki. In this fantastic horror manga reprint, an alien parasyte invades earth, causing the humans it possesses to cannibalize their fellow humans. A young boy accidentally halts the creature's growth before it reaches his brain, turning his hand into an otherworldly creature with a mind of its own. Though it's motives are always described as enlightened self-interest, the boy and creature develop a strangely touching symbiosis underscored by the splatter horror of the main plot. Continued in a second volume, it's a story fans of j-horror, Uzumaki, and teen slashers should appreciate.

Sister Red #1, Shizuru Hayashiya. A supernatural/horror manga that gets off to a bloody start with a fairytale devil's pact beginning. A modern Japanese schoolgirl is killed in a hit-and-run and resurrected with half of "Scarlett's Heart" - the life force of an immortal beauty who's crematory ashes turned an ancient village into vampire-like denziens. Naturally there's a sectarian battle between good and evil, and the bad guys want the heart back, with the power it possesses. A nicely episodic set-up, my only disappointment is that my local library doesn't have the next volume.

RA-I, Sanami Matoh. Another screwball comedy detective manga from the author of Fake, this manga is a little more episodic. The artwork is still rather messy, and the characters disappointingly two dimensional, but it's an amusing enough way to pass a few minutes.

Saikano, Volume 1: The Last Love Song on this Little Planet, Shin Takahashi. A charming tearjerker of a manga, the plot concerns two socially inept students in small town Japan stumbling their way through the beginnings of a naively sweet romance.

Mail Volume 1 & Mail Volume 2, Housui Yamazaki.  A fantastic episodic horror manga, Mail takes the premise that the uncanny is a message from the departed.  A 'psychic detective' takes on cases from the living plagued by ghosts, putting them to rest with a spirit gun. 

D.N.Angel, Vol. 1, & D.N.Angel, Vol. 2, Yukiru Sugisaki. Another light teen girls manga, in the tradition of Fruits Basket or Ranma 1/2. The son of famous thieves finds himself transformed into "Dark," the phantom thief whenever he finds himself thinking of his high school crush. To complicate matters further, his alter-ego is in love with the crush's twin sister. The expected hijinks ensue in a charmingly convoluted series of thefts, school trips and near-unmaskings.

 

Gyakushu! Volume 1, Dan Hipp.  Overblown, overwrought, and utterly forgetable.  Gyakushu is a laughable anglo attempt at a pseudo-Samurai epic, and unfortunately neither the writing nor the artwork can salvage it.

Descendants of Darkness, Volume 1, and Descendants of Darkness, Volume 2, Yoko Matsushita. A fairly formulaic supernatural/horror manga, Descendants of Darkness is episodic enough to hold my attention without descending into soap opera arcs. The framing device is that agents from the ministry of Hades are dispatched on missions to earth to retrieve the souls of those who are overstaying their 'proper' time on earth. In Volume 1, one of the agents has a mysterious connection with a beautiful would-be suicide. Volume 2 takes the series into more standard folklore territory, invoking a devilish violin and a contract with a demon for one's soul. The agents themselves are so far a bit two-dimensional, but the stories are entertaining enough to keep it going.