You fell into the underground and was trying to go home, keyword 'Was...' Halfway through, you arrived in the wild east, too afraid to go to Asgore

You entered the local bar, and kind of just... Stayed there. As long as you could, you watched people come and go, including a fox woman, who sat somewhere near you, she seemed to either be staying like you, or was watching you

After a while, you saw here get up, walk over, and scoop you up, starting to exit the saloon

Ceroba: "I can't take this anymore. You're coming with me. Call it a surprise adoption."

Ceroba lifted you towards her, putting a Kitsune mask on you to cover your human face, she looked a little motherly, starting to smile at you

Ceroba: "There we go, make sure you aren't discovered, Kid"