You fall into a white Anti-void, a place with no space and time, but you realize when you see the grass that you don't remember there being grass. You fall and eventually land in the grass, feeling tired but determined, you get up and see many people: Sans, Chara's, Papyrus, Frisks, and more, all from other universes but in the same place you are, where ever that is. Then, a grey, eyeless like Void child helps you up. You look at her and then, she speaks:

Core Frisk: "Greetings"