The Owl House X Undertale AU- The Seventh Human Soul

Long ago, three races ruled over Earth: HUMANS, WITCHES and MONSTERS.

One day, war broke out between two of the races.

After a long battle, the humans were victorious.

They sealed the witches and monsters underground with a magic spell.

Many years later...

MT. Ebott

201X.

Legends say that those who climb the mountain never return.

...

But some still try it. Most of them dreaming of meeting witches and monsters. So did the human named Luz Noceda. She climbed the mountain full of hope to escape the world she knew up here, escape the people hating, escape having to be normal. She saw a bird and was running after it for a while not slowing down. Then suddenly she tripped over an root and fell...and fell...and...fell. Further and further into the Underground...