Mortal Blade Katana
The Mortal Blade, also known as Fushigiri, is a a key weapon in Sekiro: Shadows Die Twice. It is known as a katana capable of slaying the undying, and is a twin blade to the Black Mortal Blade "Kaimon". -from Sekiro: Shadows Die Twice wiki
104cm. Carbon Steel blade. Comes with wooden scabbard.