Breke's true nature is a System created to devour entities from other worlds, absorb them, and artificially reproduce their Rules. His name and appearance are drawn from the memories of Freke, the ravenous wolf of Yggdrasil, whom he assimilated at some point in the past; the moniker Breke is actually short for B-type Freke. Thanks to absorbing Huginn and Muninn, the ravens twinned with Odin's wolves who preside over thought and memory, he also possesses astonishing mental processing power.