Etrian Odyssey

In a vast and fertile land lies a small town known as Etria, a peaceful village that became famous for a startling discovery. A crack in the vast forest opened at the edge of Etria, leading downward like a gaping maw. It all began there... Those who hear rumors of the labyrinth of Etria, whether young or old, begin to harbor dreams of exploring it.

Source:

www.atlus.com