It's been four years since peace and prosperity had been restored to the undergrounds where the monsters were once forced to be trapped inside. Long ago, two races ruled over Earth: Humans and Monsters. One day, war broke out between these two races. In the end of a long battle, the humans emerged triumphant. The monsters were sealed away with a magical seal. All is well until a young girl about our hero, Frisk's age, who has fallen into the undergrounds. Little do the gang find out that danger lurks around every corner in the undergrounds...
18 parts