You are daughter of Betty, your name is Beatriz and you are 5 years old girl (No one knows Betty had a daughter). Then one day you are hiding behind a destroyed building, hugging your teddy bear in fear and watches three skeletons who names are Gaster, Sans, and Papyrus who is attacking your mom known as Betty (Gaster is Sans and Papyrus dad). Your mom is getting badly hurt in the battle