Under Mt.ebott happens 20 years after the collapse of the Underground.The core exploding made near the entirety if the Monsterkind turn back into their primal form and behaviour.The zones are : the Ruins,Snowdin,Waterfall,Hotland,Ash Core (the old core who blew up and turned its place into ashes),and New home (where the once royal family were living).you solehow atterished in the underground.no matter how deep this rp will get,this world will never give you a second chance.