Long ago, the kings of the land wielded crystals — artifacts of power rivaling the gods themselves. One king, Nightspirit, grew drunk on his crystal's strength. Calling himself the Crystal of Kings, he unleashed a monstrous army to seize every crystal in existence. The aging king of Estorea, unable to stand against him, entrusted his kingdom's crystal to his loyal knight Cocco — and begged him to find allies among the other kingdoms' warriors and bring Nightspirit down.