I have some questions-
1. Is this strictly a 1X1 roleplay or are more than one person allowed to join? I ask since you clearly want a specific pairing but you also say you're ok with multiple people joining.
2. How familiar does someone have to be with the franchise to join in? Is this RP more for people who are familiar with Twisted Wonderland or can people who aren't familiar but might be interested in the premise join in? For example, I've only heard of Twisted Wonderland and am not familiar with it otherwise. Would that make me unable to join?
3. Is everyone a vampire? Or are there mortals, or even other supernatural beings (werewolves, zombies, etc.)? Do they abide by classic vampire rules (IE: Cannot go out in sunlight, feed on blood, and so forth) or do they have their own unique lore related to this particular RP?