The Slime King has ordered six of his most trusted noble slimes - Fire Slime, Ice Slime, Acid Slime, Ghost Slime, Princess Slime and Unicorn Slime to retrieve the stolen Crystal Gem. The Crystal Gem has been a symbol of peace and harmony for the Slime Kingdom for centuries. Without the Crystal Gem, the people of the Slime Kingdom remain in distress fearing that chaos may emerge. The Slime King will reward the noble slime who retrieves the Crystal Gem with 100,000 slime gold. The slimes rush on their own adventure to gather items that will aid in their mission of retrieving the Crystal Gem, but who will bring back the gem first?