Soul Collection

Description
A unique trait of any and all weapons brandished by the nakajima clan although it is considered to be among the more well defined members in its usage. Every Nakajima weapon possesses the ability to effectively consume a defeated opponent. This often referred to as consumption within the clans educational text of seishin studies. This effectively means that every weapon forged for a member of the Nakajima clan has the ability to make what most of the shinobi world would consider an intangible subject tangible. This is said to be done by taking both the yin and yang portions of an individual's chakra and binding it with their mortal coil. This in turn allows a member of the Nakajima clan to produce an opponents soul without the use of traditional means via the six paths or more rudimentarily methods such as the soul separation seal used by some shinobi. Although the latter has more foundation in this technique than the former as Akame Nakajima also derived his Chains of Woe technique from this.

Usage
When the technique is put into practice it is typically bound to either the sheathe of the weapon or the weapon itself. In the case of Akame he has bound this technique. Using the finger tip bones of his fallen foes and carving them to fit his needs before sealing them in a cartridge scroll. He has effectively used the culmination of his clans heritage to properly ensure the technique functions appropriately. In the case of a projectile based weapons a targets soul could be sucked into the projectile in question.

Trivia

 * This technique is based on the Soul Eater manga and their weapons abilities to consume a soul.
 * When a Nakajima collects a soul within a bladed melee weapon that carries a sheath the souls are sucked within that medium as opposed to the weapon itself. The opposite is the case for non-sheathable blunt weapons such as brass knuckles