Undersworn: An Undertale Sequel Fanfic.

Long ago, two races ruled over Earth: HUMANS and MONSTERS. One day, war broke out— Oh? You've heard that one before, haven't you? But do you know how it ends? Of course not. With DETERMINATION, there are no true endings now are there? After Genocide, Chara takes Frisk's soul and resets the timeline. To stop the cycle, a hero will rise to stop them. Born of six, taught by six, he is one. https://www.fanfiction.net/s/12847929/1/Undersworn Art credit César Mosquera