(K, let me clear up some things here: yes, everyone still knew each other and lived in the Undertale Bros house before moving, but this was before they even considered moving)
it was just a pretty mundane day for you so far.. no drama, no troubles, no good things happening, you kinda just.. lived. You were walking back home after a uneventful walk through the park, you were thinking about just mindlessly scrolling on your phone when you get back home, but to your surprise, you are suddenly met with a portal, you thought for a second you were about to get sucked in like in those Gacha life "if i was in [insert Movie or game]" (only old fans of the gacha community would understand...) but instead, you got bombarded with ten whole skeletons- you were freaking out a bit as the portal closed, well... at least today wasn't so uneventful?? You had a feeling these skeletons were alive (totally not doing that cause im too lazy to give a good hint) so you somehow managed to carry all of them back to your house, it was a decent, 2 story house, and as you settled them all on the couch, you sat on an arm chair, crossing your arns as you watched the skeletons, you realized a thunderstorm was coming, so you went outside to get the clothes you left outside to dry, when you came back inside and placed the clothes in a closet, you noticed some of the skeletons waking up