It was a hot summer day on the surface, something snowdin monsters weren't used to. sans was at home alone while papyrus gets the groceries. Sans has decided to bring frisk to the park, on the way there to bring frisk to the park,
sans felt a punch to his head as he got knocked out. Sans woke up in a basement-like room, his clothes were taken away from him. the room was very messy and had boxes.
???: Hello, Sans
Sans had tried to teleport, but he couldn't; he was strapped to the wall.
???: Don't even think about escaping!
Sans: Well, what do you want from me? Papyrus will be worried if I'm gone.
Why should I care about your little brother, or any of these monsters? They should all be killed or tortured, and that's just what I'm going to do to you!
???: So stay here…I've got something planned for tomorrow.