Nuibari

The is one of the swords of the Seven Swordsmen of the Mist, wielded by Kushimaru Kuriarare. It's a longsword that greatly resembles a large needle, with a long length of thin wire that resembles thread tied to the eye. This sword is said to possess the ability pierce all and stitch them together. It is shown to be able to pierce multiple targets at once and stitch them together in bundles. The user can throw the sword to pierce a line of enemies, then catch the needle at the other side, and then repeat at different angles to create knots of corpses with the wire passing through them, effectively creating bundles of bodies at different points in the wire.

The sword is first seen when a revived Mangetsu Hōzuki summons it from a scroll. The sword then returns to its wielder: Kushimaru.