These two characters belong in my headworld, which I won't get too much into because it's insanely complex and I couldn't be bothered to explain it all //huff

They're these jelly-like organisms called Kaellv Zelata, and they play a pretty important role in their world.
Moth (the blue one) is this big bara jelly who takes on a humanoid appearance and is rather shy and docile, while Companion was a severely wounded younger Zelata who Moth decided to fix up with Elaplokami technology. I'll explain this in more depth some other day orz