Hello [@vancexentan], and welcome! Good to hear that you are interested! While the primary inspiration for this RP will be the original VN, there are some aspects of Umbral Star that might come up, and while Grand Order is unlikely to provide much background, it does allow for the understanding of the basic classes (though I will note that the rock-paper-scissors of the classes is something that won't carry over, just to be clear).

I am understanding several different implicit questions from your post, which I may be misunderstanding, so I'm going to lay them out here.

First, you seemed to indicate that when you've RP'd romance in the past, it was usually within your own characters. Is this understanding correct?

Second, you seemed to indicate you'd prefer to play a Servant - but was that a Servant alone, or a Servant and a Master simultaneously? I don't want to misunderstand or give the false impression, so I wanted to be sure. 

Thirdly, you want to have a Master and/or Servant of your own making? From what I understand, you would like to design your PC (assuming acceptance) yourself rather than have one assigned to you, which I am totally fine with, and that said PC would likely be a repeat from an earlier (other) RP - which I would likely want to look over more closely before giving a yea/nay on it.

Did I get those correct?