Innocence

Innocence is the power source that drives the Black order. Innocence is also the weapon that Exorcists use to defeat and purify Akuma.

Innocence is used by exorcists chosen by the innocence to wield them. Each piece of innocence is different and is specifically created for their use. Innocence is somewhat sentient and can make up it's own mind who it will use as a host or something else.

The Innocence was originally a golden cube, inscribed with what is described by Hevlaska as an ancient prophecy: ''Our descendants, We have battled the darkness, and they are a dying breed. There will be calamity in the future, so we leave behind this message here in order to help you.'' It is revealed that the cube was made by people who had fought the Millenium Earl, and in the process the world was destroyed by a great flood, where only Noah and his family survived. The cube was eventually scattered into 109 pieces around the world. One part of the Black Order's agenda is to find all the Innocence shards as well as their compatible users to defeat the Millenium Earl and his followers. The Innocence is the only thing that can destroy Akuma and hurt the Earl and members of the Noah Family, but only the last two have the ability to destroy shards of Innocence by crushing them in their hands. At least 12 pieces of Innocence have been destroyed by them so far.

If a piece of innocence has decided that the one using it has sinned or will not recognize the current user anymore as it's master the exorcist will become a fallen one. This is where the innocence completely takes over an exorcist's body and turns it into a monster of innocence destroying everything. There is no current cure for this and eventually the one afflicted will burn out and die. Allen has found a way to stop a fallen one by removing the innocence itself from the exorcist but no matter what allen did the fallen one lost it's mind and became a comatose, non-responsive person.

There are three types of innocence forms:

Equipment: The most common of the innocence forms. This is where the innocence is forged into a weapon and is used by the chosen exorcist. Each equipment innocence is forged differently to accommodate each exorcist's unique innocence abilities like Kanda's sword or Lenalee's boots. However, it is revealed in the anime that members of the Noah family can extract the Innocence from equipment-type weapons easily if given the chance.

Parasitic: A rare type of innocence where the innocence is born with the person and it serves as a weapon. The cells that make up this type of innocence are not part of the person but the body still recognizes it as it's own. Because the Innocence is a part of the Exorcist's body, it can heal the Exorcist if he is hit by the Akuma's Blood Bullet by destroying the virus before it can spread. The side effect of this innocence is that the user's appetite increases due to the innocence feeding off the person so in reality the person using the innocence is literally eating for two people. Also, the Innocence eventually weakens the user as it draws its energy from the host's body, which reduces the user's lifespan.

Cystal: A new type of innocence where blood is the innocence's medium. The power of this type is incredible as lenalee used this type to help defeat a level four akuma. the full power of this type has yet to be seen. There is no telling what this type will do to the person in life. Currently the order is recording all uses of this type and finding out what it can do as well as find out what would happen to the person using it.

The power of innocence is determined on how much an exorcist is in synch with his weapon. The higher the synch rate the better the weapon is. Also, Exorcists who have achieved certain synch rate with their Innocence can advance it to Level Two if neccessary. This can allow them to access more powerful skills that cannot be used at basic invocation. Most exorcists have a synchro rate of about eighty or more but generals are the only ones that can bring their rates up to one hundred percent and beyond that.

If a sych rate falls below ten percent it is too dangerous to use the weapon and the exorcist could become a fallen one.

Heart of Innocence
The heart of innocence is a mythical shard of innocence that has the power to save the world. It is unknown what it exactly looks like but the only real ways to find the heart is to shatter each piece of innocence because the heart when crushed by dark matter will not shatter. The earl and the order are currently trying to find the person who has it. The earl wants it so he can use it to unleash the flood again but the order wants it to defeat the earl for good.