Watch Highschool of the Dead Drifters of the Dead
Genres: action, ecchi, horror, supernatural
Plot Summary: An OVA of Highschool of the Dead bundled with the 7th manga volume.

Watch Air Gear OVA
Genres: action, comedy, ecchi, sports
Plot Summary: First episode is based on the 16th volume of the manga. Features Ikki vs. Ringo.

Watch Sora no Otoshimono OVA
Genres: science fiction, comedy, ecchi, supernatural
Plot Summary: The gang goes to an indoor swimming pool for some fun in the sun. As expected, all hell breaks loose when Tomoki goes on one of his perverted missions.
Meanwhile, Nymph is having some issues with the loss of her master and considers asking Tomoki to be her replacement master.

Watch Hellsing Ultimate
Genres: action, drama, horror, supernatural
Themes: gore, nazis, vampires
Plot Summary: Vampires exist. It is the duty of Hellsing, a secret organization sponsored by the British government, to hide that frightening fact and protect the blissfully unaware populace. Along with its own personal army, Hellsing has secret weapons. Alucard, an incredibly powerful vampire, has been controlled by Hellsing for years. It is unclear how he feels about being a servant to the Hellsing family, but he certainly enjoys his job as a vampire exterminator. Seras is a fledgling vampire and former police woman. Although reluctant to embrace her new self, she is a valued 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.

Watch Kuroshitsuji II OVA
Genres: fantasy, supernatural
Plot Summary: According to the Kuroshitsuji website, there are 6 OVAs included in the DVD releases.
DVD 2: Ciel in Wonderland (Part 1): This re-imagines the cast of Kuroshitsuji II as characters in Lewis Carroll’s Alice in Wonderland story.
DVD 3: Welcome to the Phantomhive’s: This is meant to be like a simulation game. Elizabeth invites a lady (perhaps the viewer) to join her at a ball held at the Phantomhive mansion.
DVD 5: The Making of Kuroshitsuji II: This is a Hollywood style documentary with behind the scenes interviews with Sebastian, Ciel, Claude and Alois etc.
DVD 6: Ciel in Wonderland (Part 2): This re-imagines the cast of Kuroshitsuji II as characters in Lewis Carroll’s Alice in Wonderland story.
DVD 8: The Tale of William the Shinigami: William and Grell have to train new shinigami and reminisce about when they were training partners.
DVD 9: The Spider’s Intention: The life in Trancy household and how those work under Alois is caring for him.