Alright, so I've taken a brief look at some of the stuff in this game, and I have enough interest in this to want to join it. However, there are a few factors I need to address before I do anything specific:
First off, there's the fact that I haven't watched Steven Universe myself, and know barely anything about the setting other than what I've gleaned from a certain amount of research on the Wiki for the cartoon (which can of course be refreshed if necessary); I roughly know the general powers and abilities that Gems can possess, as well as the various sources of conflict in the cartoon, but beyond that, I'm not sure how much I need to know.
Second, there's the pre-existing bulk of... well, nearly everything in this game. There's been a player base for a long time, who seem to talk to one another OOC with a frequency I'm not likely to match up with - eleven and a half thousand posts in about three months is quite frankly an absurdly high amount of activity, given how fast every other game seems to move - and a lot of actions have been posted IC too, for which I don't know if I'll need knowledge of prior events to do anything notable in-game.
Third, I don't know whether certain character slots are even open at the present time. It seems like Gem characters may not be available to new players at the moment, and the idea for a character I had not only requires the use of a Gem, but may well be inconsistent in terms of what everyone else has, since said character would technically be a Gem-human hybrid, albeit not one born as such the way Steven is in the show. This is really the biggest deciding factor, since everything else can be resolved through my own effort, whereas I'd need Akaya's approval and/or permission in order to have as much freedom as I'd need to make the character I have in mind; if you want me to discuss who and what the character would be in greater detail, I'd be more than happy to oblige prior to actual character creation.
And finally, in the situation that I'm allowed my character as aforementioned, there's the matter of how I'd have them meet up with the other characters, amongst a certain number of less problematic issues such as "how did my character come to be the way they are"; from what I've gathered, a certain number of Gems are currently at the destroyed Kindergarten, but I need to figure out what excuse my character would have to go over there and happen across them, or to do the same with characters in another location. Probably not too difficult to figure out, but I just thought I'd mention it as something for everyone to consider, rather than just leaving it to my own devices.
Having said all of that, I suppose there's not much else I can do at this stage beyond waiting for answers. So, uh, if anyone could help me resolve the points stated above, that'd be great, and a "thank you" in advance to those who do so.