When the InuYasha and his companions at a wrecked village, they find out that the priest of the village was murdered by Kagura and The Infant. A legendary monk is known for sealing a swift demon horse known as Entei, and its demon master named Rengokuki, in the mountains. Kagura and The Infant approach the monk to attack him. However, the monk slices The Infant in half. Kagura brings both halves of The Infant to Kanna, who keeps one of the halves. Chaos ensues when the seal of Entei is broken. Moreover, due to Entei's swiftness, it is left unharmed.