The planet Sombris is a planet in the star system in which ChupaRevolution takes place, ,ChupaRevolution being  Myshu's comic. Of course that comic takes place entirely on one planet called Sirca so the other planets aren't really important for now it seems.  Myshu gave me permission to flesh out Sombris as prior to what I've provided here today, the planet was simply known for being red and having a satellite in orbit and nothing else.

I know this looks like a Mars rip-off, but there are significant differences. Sombris is almost as big as Earth and has a magnetosphere. It's atmosphere is mostly nitrogen and carbon dioxide with a tiny hint of oxygen from microbes that live in the tiny pools of liquid water the planet has. Normal chupadores ( Myshu's species) can not live here, due to low oxygen and high carbon dioxide.