Shaman King, Vol. 27: Exotica

Sati sends Yoh to train in the strangest place yet: the underworld. But when he arrives he is attacked by Yohken Asakura, an ancestor who defeated Hao in the previous Shaman Fight! How can Yoh defend himself against such a powerful shaman when he doesn't even have the Futsu-no-Mitama Sword with him?