Well, I gravely underestimated how crowded this game would be, and..... I've only been able to make it to level 11 so far.
Of course, it is technically still Day 1, as it has not been 24 hours since the game went live, but..... Yeah, I think 23 might be out of the question. (Only because I'm aiming to get the most EXP possible from the Iris Stones. I could already be over 23 if I rushed to them, but I'm the kind of person who thinks of the long term.)