you were another child who fell in the underground at a young age, you were found by the caretaker of the ruins, Toriel, she was a motherly figure to you and she kept you safe in the ruins and didn't let you go to other parts of the underground. One day, you heard knocking coming from downstairs, you ran downstairs, you saw a giant door which lead to Snowdin, you heard more knocking and a curious male voice speaking

Sans: hmm... interesting, is someone there?