Crystal Saga: Dawn of the Crystal Gems

the goddess Isis has sealed the demon king, but he is free to do his damage now. However this is a bad timing for his freedom, for it's right dab into the battle of Athena and Hades. To make matter worse he's form an alliance with hades, so that one thing she has to worry about. However the crystal gems might be able to stop him, however we might never know the out come until we c