I have a single question here, does your rank determine power or can you be powerful without the rank?
I ask because most bleach RPs make it seem like you need the rank to be significantly powerful (based on bleach perception. If you don't have a rank, you can't even have a Shikai or Bankai. And I always found it backwards like you need to be captain before you get Bankai and that is nothif it works. Having Bankai does not make you a captain, you need one to qualify, unless you are Kenpachi from Zaraki, at that point, you only need to exist and you can become captain, but I digress. (I'm aware he killed the previous squad 11 captain to get his spot)