The legendary swordsmith Tōtōsai forges two mystical blades: Tetsusaiga for Inuyasha, and Tenseiga, a healing sword, for Sesshomaru. Displeased with a sword that can't kill, Sesshomaru demands another. Tōtōsai runs—and tells Inuyasha that he must face Sesshomaru again...

Koga, a brash wolf demon with Shikon shards in his limbs, challenges Inuyasha. After a quick retreat, he returns—interested in Kagome's spiritual power—and kidnaps her. Inuyasha gives chase but is attacked by their natural enemy: the deadly Bird of Paradise...