Worm Eater

Worm Eater is a device that instantly oxidizes the Nameless Worm, that resides in the Branch of Sin. With the Nameless Worm gone, the Deadmen's blood becomes useless, making them unable to attack.

The Worm Eater was invented by Tsunenaga Tamaki and was given to the Undertakers. Karako also got a hold of it, got it researched by a doctor in the outside world and planted it in a sword. That sword was given to Makina, as a weapon against the Forgeries.

The Worm Eater has been effective against every Branch of Sin, except Ganta's Ganbare Gun and the Wretched Egg's Branch of Sin.

Owners

 * Azuma Genkaku: in the skull on his necklace
 * Hibana Daida: embedded in her weapon
 * Makina: embedded in her sword