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Former [[TheHunter vampire hunter]] Kuroe Kurose is leading a very different life these days; despite vampires having killed his Hunter sister and accidentally granting him immunity to their glamour; he happened upon a young girl named Misaki who had been freshly turned into a vampire. Settling down and becoming a novelist and {{private investigator}}, he has adopted her and is trying to help her from succumbing to the EnemyWithin.

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!This manga contains examples of:

* AndIMustScream: The body-snatcher is immobilized by being turned into a vampire with a permanent broken neck; then left in an abandoned basement.
* AwesomeMcCoolname: ...seriously, [[{{alliterativename}} Kuroe]] [[RepetitiveName Kurose]]? ("Kuro" means "black".) That's like naming someone Darke [=McDark=]. It is revealed to be a name he was "allowed" to take by his teacher.
* BadassAndChildDuo: Kuroe, a badass Vampire Hunter who has taken in tween Misaki, an unawakened vampire girl whose vampire hunter parents were killed by vampires who then turned her into one.
* BedTrick: [[spoiler: Higure ties up Misaki and dresses up in her clothes to try and trick Kuroe into making love to him. Fortunately, Kuroe is repulsed by the idea of Misaki coming onto him.]]
* BodySurf: Early on Kuroe and Misaki face a human who can steal bodies of those near him when he dies.
* BrotherSisterIncest: Kuroe wasn't ''quite'' to this level with his sister, but it was close.
* ChildSoldiers: Maria, who was trained by vampires to be an assassin.
* CurbStompBattle: Any time Kuro is pushed far enough to actually use magic, his enemy is generally dead or beaten in a matter of seconds.
* EnemyWithin: A very common trait of vampires within the series. Though said person can have a nice personality it's an inevitable fact that the monster within them will surface, just depends how long it'll take.
* MrFanservice: Kuroe "Tall dark and bishy" Kurose. Blood Alone is technically a {{Seinen}} manga but may actually have a higher female than male readership.
* FailureKnight: Kuroe is haunted by his failure to save his sister from vampires; Misaki reminds him very much of her.
* FriendlyNeighborhoodVampires: Misaki's "vampire self" hasn't even awoken yet, Sly was changed by Orphans (those without a clan) so hates them and helps Kuroe out, and while it's likely that Higure has OffstageVillainy; he has been nothing but helpful to Misaki.
* GenderBlenderName: Kuroe's name is actually a romanization of 'Chloe', because he's inherited the powers of [[LegacyCharacter Chloe the magician]].
* [[LesbianVampire Gay Vampire]]: Higure is rather fond of his {{bishounen}} Renfields; nothing outright is stated; but he does like having them snuggle him. He also enjoys hitting on Kuroe; and while his being a ''vampire elder'' means he's dangerous, his being gay isn't demonized.
* {{Heroic RROD}}: Misaki's {{Enemy Within}} surfacing a lot quicker the closer to true death she is. It (her vampire side) warns Kuroe of this after she nearly killed by a body snatching murderer.
* TheHunter: Kuroe's old profession, these days he's more on the TrueNeutral path, since having a peaceful co-existence with the local Vampire Elder is beneficial for Misaki.
* LoopholeAbuse: [[spoiler: Misaki tells Higure that she'll get him anything he wants for his birthday. What he ''wants'' is a night of passion with Kuroe, so he ties up Misaki and poses as her to try and get Kuroe to have sex with him.]]
* TheMentor: Kuroe was taught to be a KungFuWizard by his Sensei; a mage dressed in a VictorianLondon style [[GorgeousPeriodDress Black Funeral Gown]] who can StealthHiBye, and was apparently named Chloe. He refers to her as "The Lady" and other vampires call her [[RedBaron "Sinistre Femme" or "The Woman With A Forbidden Name"]]
** Doubles as SexyMentor. Just see the beginning of Volume 6.
* MistakenForGay: Crossed with Mistaken For Straight as well. An IdolSinger named Kaoru eventually develops a crush on Misaki, and Misaki accidentally comes to believe the girl has a crush on Kuroe. So Kaoru unsuccessfully tries to hit on Misaki (thinking Misaki likes her back) while Misaki thinks Kaoru only has eyes for her mentor.
* OlderThanTheyLook: Naturally, when dealing with vampires, but Higure the local Vampire Elder looks like a child the same age as Misaki.
* OurVampiresAreDifferent: ...but apparently not ''that'' different. They are remarkably like the ones from ''TabletopGame/VampireTheMasquerade''. Sunshine is actually a weakness, [[OurVampiresAreDifferent surprisingly.]] It is commented that they're mostly imported from Europe. One major difference is that it takes a while for the EnemyWithin to kick in; it's accelerated should a vampire get injured.
* ReluctantMonster: Misaki is a complete innocent.
* TheRenfield: They are actually called "Renfields", servants to vampires who are given vampire blood. This generates a feeling of love and obedience.
** Maria gets adopted by Higure, and he's a perfect gentleman who simply tells her that she's now part of the family. He doesn't attempt to control her will at all. Of course, she's not really his taste...
* SchoolgirlLesbians: Kaoru Souma, a young singer who has a crush on Misaki.
* SupernaturalMartialArts: Kuroe and his sister know a form of "magic martial arts" that let's them fight vampires.
* UndeadChild: Both Higure and Misaki so far have been friendly; Higure is competent; but he reveals that ultimately all undead turn into monsters. It's just a question of how many centuries it takes.
* VampireDetectiveSeries: It's not ''Kuroe'' who is the vampire, but it's definitely the genre.
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