You left the coffin room, most of the other human souls had already gone back into their bodies and gone off either to see what changed in the Underground before leaving, or just going back to the Surface immediately. You went to go check out the Underground, because you weren't exactly ready to go back to the Surface. Most of the areas were the same, a lot less monsters, because they were already on the Surface, and the remaining monsters that were still packing up were nice to you. That was a nice change, so you'd have to thank Frisk for that later. You walked through the Underground before reaching Snowdin. There wasn't really any point in going into the Ruins, you doubt Toriel did any redecorating in there. You turned back around to go back to new home, but bumped into a monster. Dalv: Oh! Sorry, I-... hm? Another human?