InuYasha, Kagome, and Shippo save a girl named Nazuna from being attacked by spider heads. The priest of a nearby shrine allows the three to stay, with the protection of sutras. After they are attacked by spider heads at night, Kagome and Shippo soon discover that InuYasha becomes fully human on the phase of the new moon. It is learned that the priest is disguised as a spider head, as InuYasha is vulnerable against him. At sunrise, InuYasha is able to destroy the spider head.