Chapter One

~Summary: Gaster and Sans, have fused together to defend their work from the King and Queen, who want to break the barrier to destroy the human world, Frisk falls into the underground, during the war and Gaster!Sans has to protect her from not only the other monsters, but from losing herself in the chaos. An adventure sparks between these two as Frisk tries to stay alive and Gaster!Sans tries not to fall for the human.~