- The only non-binary NPC in the group is an alien.
Whilst there's nothing necessarily wrong with that, it falls into an unfortunate recurring trope of the only explicitly non-binary character in a narrative being a non-human; an alien, a robot, a monster, etc.
- On a related note, it's not ideal that the same non-binary character is treated as a valid romantic option for both characters who explicitly self-describe as "gay".
There's a degree of implicit misgendering in there. Especially since the explanatory conversation about the personal definition occurs in an entirely different pairing.
Gotta say, it's a little weird and pretty disappointing that neither of the points above were caught by your sensitivity readers.
Great game, very cute, very Queer, but it would've been remiss of me not to give feedback on those snags.
Means I have to caveat recommendations a little, which I wish I didn't have to.