Fractals

The Fractals (フラクタル, Furakuturu) are a seven Souls who hold pieces of the First Fractal. Each one represents a deadly sin. Respectively, they are Pride, Greed, Gluttony, Lust, Dishonesty, Envy and Wrath.

Overview
The Fractals themselves are the seven pieces of the First Fractal that exist inside their hosts in the same way a Zanpakutō's Spirit exists inside it's Shinigami. However, their hosts are more often than not referred to as the Fractals themselves than Fractal Hosts. The Fractals all have a power based off of their sin that awakened their Fractal, for example, Kai gains highly enhanced strength, speed and endurance in order to enhance his Wrath. All have very dark reiatsu, Kai's being noted as the most dark due to both his shadow-type Reiatsu and his Fractal influencing him.

Unless someone is around to take the brunt of the spiritual pressure created, the activation of a Fractal destroys the body and forcibly causes their souls to transform. They can still use Gigai, however, to move around the Human World. The only instance currently known of the body not being destroyed is when Kai activated his. Because Jeiku Yoshida was present, he was able to take the brunt of the explosion.

All Fractals who have mastered their powers possess a symbol somewhere on their body. This symbol's shape is identical between two who possess the same Fractal, but changes location between Fractal Host.

General Powers and Abilities

 * Dark Reiryoku and Reiatsu: All Fractal's Reiatsu has a very dark feel to it, and is normally dark in color. This is due to the First Fractal having been considered the "Ultimate Evil".
 * High Levels of Spiritual Power: Fractals all have extremely high spiritual power, the level being most akin to Escondido and Jinki. However, this is only when it is given to someone with already honed spiritual power, such as a Substitute Shinigami, Quincy or Fullbringer.
 * Fractal Mode: All Fractals are capable of entering a "Fractal Mode", a form in which their powers are increased and they sometimes gain new powers. This is most likened to Resurrección.

Behind the Scenes
The Fractals were heavily inspired by the Jinki Fragments of Bleach Fanon Fame. When I first thought of these, they were called the "Mugen Shards" (無限破片, Mugen Hahen) and represented the seven emotions of Happiness, Sadness, Anger, Embarrasment, Sleepiness, Love and Void. However, I chose not to do this in the end due to the term "Fractals" appearing in a textbook of mine and my deciding that was a better term. I also began reading Full Metal Alchemist in depth at this time, and chose to use the sins of the Homunculi instead for embodiments.