Zeleone/ Teskna

Aressa is an earth nymph from a place called Zeleone where she lives with her friends and family high up in the treetops. Her life is surrounded by lush greenery and peace.
Veri is a demon trapped in a prison for hundreds of years, trying to find a way to free himself to return home the life he was stolen from.

These two oddballs coincidentally meet, but what happens when the men who put Veri in the prison return? And what do they want with Aressa?

(I don't have a title or proper description yet, but I will work on it. This is one of the storries that has been jumbled in my head and it won't take no for an answer.)