I mean, it sounds great to me. :) The only problem I can forsee is someone wanting to play the fandom in the future and not realizing it is taken.
Yeah, that's true. But I could say the same thing about Black Butler or Soul Eater. In fact, when this idea first came to me, I was actually thinking of having...
the mystery fandom be on a similar level as those two, with me playing them briefly but not considering them to be a full character. But then I put more thought into it and the whole thing became too complex to
not warrant a full CS sometime in the future.
But anyway, the odds of someone coming along and wanting to play this particular fandom in the middle of this whole arc are rather slim, especially since it's a lot less popular than Black Butler or Soul Eater. :P ...Although, on the off chance that someone
did want to claim that fandom, I suppose I'd have no choice but to spoil that reveal early, which would be a shame. :/
Anyway, my main concern was that it would come across like I'm using my GM authority to get away with things that most other players here wouldn't be able to do. Like, I
guess any player here could do something similar
if it was planned out with me ahead of time, but, you know... it's not quite the same.
And I would
especially feel bad about it since I already did a similar sort of thing with "Triguniverse" way back when. And, looking back on it, that whole thing felt really weird and didn't build up to much, anyway. (Although, for the record, mystery-fandom and existing-fandom-that-mystery-fandom-would-be-associated-with have
much more in common than Steven Universe and Trigun do, and have more of a reason to have the sort of history that I'm planning on them having. ...And it's precisely that history between them that I've been constantly thinking about, hence fueling my desire to go through with this.)