@Liriia: I have some issues here.

Firstly, her name is the same as one of the other characters, which is kind of awkward. I also don't think it's right to fit all youkai under a single category of "trickster", as some people might want to play youkai who are not like that. I'm not understanding how she's a hitman at all, since it seems like they just randomly conscripted her for it which is not how becoming a hitman works in anything. It doesn't really make sense.

Anyway, um, more bios!

Name: "I'll tell you. If I feel like it."
Race: Vampire
Age: ??? , appears around ten years old.
Appearance: [url=http://i.imgur.com/aORVpPW.png]Borrowed appearance, thank you to Rin for recoloring her eyes.[/url]
Personality: To many things, the vampire's reaction seems to be polite disinterest. She lacks any care for almost anything that exists, finding much of it worthy of very little attention. However, she will be polite unless pressed and annoyed, in which case her responses become sharper and less patient. That said, she often speaks in a very charming and polite manner, and is generally somewhat willing to talk provided that something she's actually enjoying isn't interrupted. While perhaps not very much, she does find people somewhat interesting most of the time. 
The vampire will make for even more animated and pleasant conversation if she finds herself more interested then usual in a person. The more interesting she finds someone, the more pleasant and energetic she becomes. However, the charm, and in some cases teasing attitude, grows. In fact, the vampire often places some teasing in her interactions with others. One of the reasons the charm grows when she interacts with someone she finds more interesting is because she becomes interested in... tasting them. She does need to drink blood, after all, and while she wouldn't take enough to kill someone(that is simply unacceptable in her current situation), she enjoys... getting a taste of those she takes a liking to. So her intent is quite simply to charm them into allowing it. 
The vampire is also a highly intelligent and articulate girl. She enjoys reading and has a vast knowledge of a great many works. She is somewhat playful about her identity, asking people to figure it out themselves, though she will reveal it if she feels it is appropriate. Finally, she finds fighting only somewhat interesting... most of the time. If a battle really gets her attention, she becomes quite a bit more energetic. It would be easy to describe her as incredibly hammy if she gets going. She also becomes much more threatening, her smiles becoming much less friendly grins.
Skills/Abilities: The vampire is highly mobile and very fast, as well as dangerously strong. Even a very strong grown man would be easily overpowered by her. The only ways to kill her are the destruction of her heart or the severing of her head. All other damage is regenerated completely. Sunlight, while an irritant, does not effect her "Any longer", in her terms. It does sting her eyes and she requests a parasol if she must travel in it. In addition, she is incapable of tanning and simply gets painful sunburn. However, natural running water(including magical sources) renders her powerless until she can dry off, and religious objects make her sneeze(longer exposure to them causes her to develop a cold). 
The vampire can create illusions, disguising herself and others. These illusions are highly convincing, and it is difficult to pierce them. She can also disperse into a cloud of bats, reforming perfectly for rapid travel and dodging attacks. Injuring one or more of these bats will injure her, though she will regenerate upon reforming. She can manipulate the blood from her own body, or blood that's been spilled, to create spears and other weapons. However, if she uses blood from her own body it will drain her rapidly and make it highly necessary for her to drink very soon. Finally, the vampire can summon familiars out of her dress. The appear in a dark mist that pours from it, taking the form of shadowy wolves and bats. While they are capable of seriously injuring a target, it takes only one strike or any kind to dissipate them entirely.
Equipment: A whole lot of gothic lolita.
Brief Backstory: The vampire appeared in Shinkawa and had a mansion built. Details on her past are rather sparse, as she neglects to even explain her name, instead sticking to being all mysterious. She holds some parties and very occasionally goes and helps out with monster dens. If she really feels like it.

One more bio coming.