Suzunagi

すずなぎ

She was born in the late Edo period into a Christian family that were indirect descendants of the Ancient One's clan. Her father was a local playwright who ran a theater house, while her mother assisted with theater duties. After her father wrote a play about five young men wearing suits of Armor who fought against forces of evil, the Shogun's samurai set the theater on fire and executed Suzunagi's father, with Suzunagi and her mother dying in the fire.
Following her death, Suzunagi became a wandering spirit, unable to rest until the Armors, which she believed to be evil, were destroyed. During World War II, she encountered the Ancient One and attempted to stop him from unsealing the Armor of Strata, but was driven off.