You find yourself in a weird like dimension. Dimension 1000. You look up in the sky and see many MANY planet like dimensions. A voice could be heard from behind you.

"Well well well... I haven't had visitors in many years or maybe even more than years. Greetings, I'm 4th Dimension Sans. The one who guards every single non-existing dimensions and existing dimensions. Or maybe even your reality itself as well. What are you doing here so far, from home little one?"