From the winner features, I was considering a burning crystal/coal look first, but I felt I needed some other visual element. I thought I could add some blue flames instead of common orange, and then I found that propane gives out that color. Then Propane mixed with Neko, add some gas valves and firefighter stuff, and it came together. Fun stuff! I have no story setting for her unfortunately.

https://linktr.ee/supersatanson