Welcome, Ophelia. :)
Witches: Scribbles, Anithinum and Meliai have posted their character. There are at most two spots left. Giulianna, if you want to claim one of the spots, post a character, or PM me a character concept.
Demons: ShadeOfGray, Drake Valentine, RomanSoldier and Polymorph have posted their character. Seer is also planning on creating one. I might play a Demon character myself, if the match-ups don't work out. As mentioned before, the Witch players decide who get to play their characters' Demon partners. Because the Demon characters have quite a bit of power over the Witch characters, I prefer the Witch players having partners they're comfortable about. Witch players are encouraged to contact Demon players to see if they would match well. Since we're currently a little high on Demons, I recommend not going for the Demon characters, unless you know one of the Witch players would want you as their partner.
Adventurers: I've come back on my earlier statement, and decided to not allow magic users to fill the role of Adventurer. There are at most two slots available. Spell (and perhaps Tsunami), if you want to claim an Adventurer spot, you need to post a character or PM me a character concept, just like witches.
Succubus: Ophelia has filled this spot up. I'm not looking for additional Succubi.
All but two Witches/Adventurers should be ordinary humans. Meliai has claimed the elven/fay heritage. One Witch or Adventurer can still, due to a failed magical experiment on the day she was born, choose to have anthropomorphic features.