Vampire Hunter D: Bloodlust

The story revolves around D, the infamous "dunpeal" (born of a vampire father and a human mother) outcast and renowned vampire hunter. His prowess at hunting the creatures of the night allowing his acceptance among humans, he is called upon to locate Charlotte Elbourne, the lovely daughter of an affluent family who has been mysteriously kidnapped. When the sun sets, the hunt goes on! Charlotte`s father offers a rich bounty, be she dead or alive, a task D willingly accepts, even with notorious Markus brothers and their gang of bounty hunters seeking the prize as well. Amidst the chase and unknown to all lurks a sinister evil which has been secretly manipulating their every move and has set a chilling trap that none will expect and few will survive. With the tables turned and the secrets revealed, the hunters could quickly become the hunted! (Source: AniDB)

Blood: The Last Vampire

Teropterids are evil beasts which pose as humans and live only to drink human blood. Fortunately for the human world there are groups dedicated to destroying them. A brooding and mysterious girl named Saya is the best teropterid slayer there is, and now, in 1960's Japan, she is sent to a U. S. army base which may be infested... (Source: Anime News Network)

Trinity Blood

The background is in the distant future after the destruction brought about by Armageddon. The war between the vampires and the humans continue to persist. In order to protect the humans from the vampires, the Vatican has to rely on other allies to counter the situation. The protagonist, Abel Nightroad, is a traveling priest from the Vatican and a crusnik, a vampire that drinks the blood of vampires. He is a member of the "Ax", a special operations group led by Cardinal Catherina Sforza. He encounters a young girl called Esther, who decides to go with him to Rome and train at the Vatican. Soon after he meets her, the order of Rozencreuz, led by Abel's twin, Cain, tries to continue the war so they can rule the world. It's up to Abel and the AX to try and stop them.

Gungrave

After a tragic scene with the murder of his friends, Brandon Heat follows his only friend Harry McDowel into Millennion, the largest mafia syndicate. While Harry McDowel is striving for power, Brandon is only staying in Millennion to see the girl he loves whose custody was gained by the leader of Millennion, Big Daddy. But as the years pass and Brandon proves loyal to Millennion, Brandon learns the true purpose and passion of Millennion, and that's when true conflict arises. (Source: Anime News Network)

Trigun

Vash the Stampede is a wanted man with a habit of turning entire towns into rubble. The price on his head is a fortune, and his path of destruction reaches across the arid wastelands of a desert planet. Unfortunately, most encounters with the spiky-haired gunslinger don't end well for the bounty hunters who catch up with him; someone almost always gets hurt - and it's never Vash. Oddly enough, for such an infamous fugitive, there's no proof that he's ever taken a life. In fact, he's a pacifist with a doughnut obsession who's more doofus than desperado. There's a whole lot more to him than his reputation lets on - Vash the Stampede definitely ain't your typical outlaw. (Source: Funimation)

Black Lagoon

Okajima Rokuro is a Japanese businessman in a town full of Japanese businessmen. His normal day consists of social drinking with clients and being kicked around by his bosses. He finally gets a break though, as he's sent by his company to the tropical seas of Eastern China to deliver a disc. But his boat gets hijacked by a band of mercenaries hired to retrieve the disc. Rock (as he is newly dubbed by his captors) catches the interest of the only female merc Revy as she thinks he's worth a ransom, taking him hostage. However, the disc that was stolen has a terrible secret that's unknown to Rock, which causes massive confusion and chaos for both him and his kidnappers.

Vampire Princess Miyu (TV)

Evil Shinma (shape-shifting monsters and vampires) roam the Earth on a mission to unleash their darkness upon the Human race. Miyu Royal Princess from the dark is the Chosen One—the one being who must banish the Evil Shinma from the Earth. She has the power to offer Humans the gift of eternal happiness, yet is herself, trapped between two worlds; destined for perpetual solitude and internal conflict. Miyu's only companion is Larva, once an evil Shimna; now her devoted guardian. Together they share a dark journey through the weakness of the human heart and the tragic loss of innocence. Cut off from humanity by the knowledge of what she is, Miyu lives an endless quest as both the hunter and the hunted, on the edge of darkness. (Source: AniDB)

Jormungand

A ruthless arms dealer on a quixotic quest for world peace. A child soldier born into chaotic conflict. Their lives will intertwine as they journey together through the seedy underbelly of the world's arms market. (Source: FUNimation)

Princess Resurrection

When Hiro Hiyorimi tries to save a beautiful young woman from certain death, he ends up a dead hero himself! However, since the drop-dead girl is Hime, daughter of the King of the Monsters, his "reward" is to come back as a not-quite-living soldier in her honor guard of horror! That means helping fight off the army of supernatural monstrosities Hime's siblings are unleashing against her in hopes of moving up the ladder of succession. And if facing off with vampires and zombies isn't bad enough, how can anyone be prepared for the REALLY weird ones, like were-sharks, pandas and killer dumplings? This sure as hell isn't the afterlife Hiro was hoping for, but the really sad part is that Hime is the good girl in all of this... or at least as close to good as you can come when you're on the wrong side of the gates of hell! (Source: RightStuf)

Shamanic Princess

To retrieve the talisman stolen by her beloved, Tiara hunts the night, battling monsters with her awesome shamanic powers. Disguised as an ordinary schoolgirl by day, she arrives at his lair only to find her archrival on the scene... protecting the thief. Dark secrets unravel as Tiara faces these powerful opponents, and her one hope for survival may be to betray her mission. (Source: Media Blasters)

Vampire Princess Miyu

A quiet gothic horror story about a vampire girl, Miyu, whose destiny it is to hunt down murderous demons known as Shinma and return them to their land of origin, the Dark. Miyu is pursued by the Spiritualist Himiko, determined to find out who Miyu is and to stop her from sucking the life blood from helpless humans. Each of the four episodes chronicle one of Miyu's encounters with a Shinma and the humans that it is affecting, from the perspective of Himiko's pursuit of Miyu. (Source: AniDB)

Exorcism Chronicles: The Beginning

Hyun-Am trains in Tai Chi Qigong in order to fight the water ghost that killed his sister. Father Park, unable to save his friend’s daughter from an unknown evil spirit, chooses to become a priest walking the path of asceticism. Jun-Hoo, the only survivor of Eastern Sea Esoteric Buddhism, is a genius who has inherited all the magic of the five guardians of Esoteric Buddhism. Seung-Hee, who has a secret, gets involved in a mysterious case due to her father. An occult fantasy in which individual exorcists, each driven by their own causes, solve crimes and fight together against evil demons. Demons who rule the spiritual and emotional worlds of mankind, and drive society into chaos.(Source: Naver, translated)

Murder Princess

A scientist known as Dr. Akamashi launches a coup d'état in the Forland Kingdom using his army of beasts and two android minions. With his dying breath, the king tells his daughter, Princess Alita, to escape at all cost and find Prince Kaito - her older brother who's currently on a diplomatic mission abroad - in order to guarantee her own safety and possibly take back the kingdom. As Alita flees, however, she ends up in a predicament that results in her dying and swapping bodies with Falis, an infamous bounty hunter who happened to be out hunting in a nearby forest together with her monster sidekicks, Dominikov and Pete. With the two women retaining their respective skills and personalities but changing appearances, Alita, now in Falis's body, begs her to go back to her kingdom and make things right, offering her body and soul as collateral - to which Falis, now in Alita's body, agrees, leading to the birth of the so-called Murder Princess, who ends up not only having to take back and protect the kingdom, but also, unravel a much deeper intrigue that soon unfolds.