Blue Seed(1994)

Original title: ブルーシード

Momiji Fujimiya, is a descendant of the mythical Princess Kushinada. When Japan is menaced by Aragami spawned by Yamato-no-Orochi, Momiji is intended to be sacrificed to appease the Aragami. She instead, however, becomes a member of the Terrestrial Administration Center, a secret agency charged with fighting them.