Etrian Odyssey II: Heroes of Lagaard

In the Grand Duchy of High Lagaard, it is said that the Duke is
descended from inhabitants of a castle in the sky. When an unforeseen
crisis befalls the nation, it is decreed that the first explorer to
retrieve the Grail of Kings from that mythical floating palace will be
rewarded with wealth and fame beyond imagining. Enter the central city
of Lagaard and begin your journey to the clouds!