Kikaku

The Phantom Sword Kikaku (妖刀『鬼穫』; Enchanted Sword "Ghost Reaper") is the weapon used by Naraku of the Kigetsumon.

About
The sword that has been passed down from generation to generation of the Kigetsu clan. It is a cursed sword that consumes the souls of the slain. This sword is testament to Naraku as the head of the clan.