@BitterVitter gave the AU to me for some reason so here we are I guess back to sans fights the LORE: Underfell Opal is a post-Neutral run of Underfell. Queen Toriel found a large crystal mine in WaterFall, and ordered a team to mine the crystals. After mining through, an opal is accidentally cracked open, releasing a white fog, dubbed Crystal Miasma. Any Monster's SOUL exposed to the fog starts to crystallize, before eventually turning the monster into an Amalgamate. I still don't know if Sans is actually alive or if any human has fallen down but oKAY I guess
text and bones by @loganvcairns song by @bittervitter and @vdail blasters by @Xx_kimchi_xX don't remember where I got the box and soul from (whoops) sprites by @inkdustsans and @sulfuri
