Sword Gai

Synopsis

Gai is discovered as a baby in the woods next to a dead woman and is raised by the swordsmith Amon. Over time, Gai becomes Amon's pupil. While forging a blade, Gai ends up losing his right arm. In response, Amon breaks the cursed sword Shiryū—meaning Death Dragon—and reshapes it into Gai's replacement arm. With this prosthetic, Gai has the ability to change into his weapon and battle his foes.