Strike World: Deadverse Reloaded the Anime S01 E04 Blade and Promise

Rinne's world begins to collapse after the Masked Man (World User) steals half of the Master Orb. Determined to retrieve it, Rinne pursues the World User to another world facing destruction. There, Rinne and her allies encounter Masamune, a girl who calls herself a "Protective Sword" (Gotō).」