You don't remember what happened, you only remember running away from Hometown, and blanking out

As you slowly take consciousness, feeling your body being surrounded by water, seeming being at the edge of a shore, you hear some voices

Ficus Forgotten: "I am not sure about this W.D. Are you sure this is the right thing to do? Would it mess with the plan?"

W.D. Gaster: "You shall not worry... It won't cause any type of trouble... I chosen him because I know he is the best we can get for Dess..."