Thanks frcol and bclikesyou,
You can be proud of littlebluefish, the game artist, because it was his idea haha. Everyone love it i'm so glad !
It was 4am, we were thinking about the theme and things came like that :
grandbrinus : hey ! why not doing a game about people who are seen like monsters ? a game about friends ?
littlebluefish : yay ! great idea ! then you'll have to eat them and poop them.
I still don't know how this idea was here, stuck in his head