When Inuyasha and his friends come across a demon possessing the Sacred Jewel of Four Souls, they realize it's not just a shard-it's the whole jewel! But the group soon learns it's only an imitation and the demon is trying to re-create the Sacred Jewel and its powers. Afraid that the jewel's power will be used for evil, Inuyasha and the others search out the demon jewel maker...