Crystal Beans From Dungeon Explorer

There was once a prosperous kingdom, a peaceful kingdom, ruled by a wise old king, where all people lived happily together, protected by the power of a magical crystal. But one day, several dark clouds appeared over the kingdom and poured down a devastating rain. And then one of the clouds turned into a demon, and, reaching its hands to the treasure room in the palace, took the crystal away. The demon lord, still in a form of a menacing dark cloud, started spawning monsters and sending them to attack the now helpless kingdom. The king called to the heavens for help.