In Sekiro: Shadows Die Twice, the Mortal Blade, also known as Fushigiri, is a powerful odachi with the unique ability to slay immortal beings. This legendary weapon is central to the game's story, as it allows Sekiro to permanently kill enemies that would otherwise revive, including the Infested Monks of Senpou Temple and the dreaded Headless Ape. The Mortal Blade is gifted to Sekiro by the Divine Child of Rejuvenation upon reaching the Inner Sanctum of Senpou Temple, marking a pivotal moment in his journey.

Though it cannot be wielded as a regular weapon, the Mortal Blade unlocks the powerful Mortal Draw combat art, which deals significant damage to even the toughest enemies. This art is especially useful against foes with strong defenses, as it bypasses blocking and deals damage directly to their health. Beyond combat, Fushigiri’s significance is deeply tied to the game’s themes of life, death, and immortality. Its very name, "Undying Slayer," reflects its purpose as a tool to sever the cycle of immortality, making it one of the most significant and symbolically important weapons in Sekiro: Shadows Die Twice.

Simplified Brown
Overall Length Inside Sheath: 103.9 cm
Overall Length Without Sheath: 98 cm
Blade Length: 68.8 cm
Blade Width: 2.7 cm
Blade Thickness: 0.4 cm
Guard Width: 8.1 cm
Material: 1035 Carbon Steel, Zinc Alloy, Wood
Sharp: No

Red
Overall Length Inside Sheath: 104.2 cm
Overall Length Without Sheath: 97 cm
Blade Length: 67.4 cm
Blade Width: 2.7 cm
Blade Thickness: 0.3 cm
Guard Width: 8.5 cm
Material: 1035 Carbon Steel, zinc Alloy, Wood
Sharp: No