universe 1a

the population mostly consists of trans girls. there's a decent amount of afab girls as well, but there are hardly any guys. parthenogenesis is not only possible, but fairly common, so reproduction isn't an issue.

several races live there: kemonomimi (humanoids with animal features), anthropomorphic animals, feral (non-anthro) animals, and living objects. normal humans do exist, but they're seen as the odd ones out. feral animals are often kept as pets; they enjoy the comfort and safety.

body modification is limitless, but can be very costly depending on the procedure.

the more hardships someone goes through, the harder it becomes to kill them. thus, immortality is possible, but only through immense suffering.

aside from this, universe 1a is pretty similar to the one u and i live in.

universe 1b

universe 1b is an alternate universe of sorts. drawings created in universe 1a come to life in universe 1b. the "rules" of this universe are more lax. it's like being in a cartoon: u can get severely injured and be able to just walk it off, and so on.

the population is, again, mostly female. literally any species imaginable can live there.

inhabitants don't age or die unless their artists decide they do, but they do have free will. they know they're drawings, what their creators were like, and often why they were created. it doesn't mean that much to them; it's seen as a cool fun fact more than anything.