The voices of the rejected are echoing in unison...to whom shall answer their calls?

A mysterious being has emerged at a time of the Great Recruitment. No intentions of joining in...only listening. Waiting to hear who else has been ignored, pushed aside despite such heartfelt passion to be recruited.
Throughout this particular world, this is not an uncommon sight at all. Certainly a particular serpent with a giant mech has had a share of such misfortune.
In the shadows of such events however, this mysterious bat has taken matters in his own hands in a rather...different way. Rather than simply relying on the powers of the Aether, he has also absorbed the power of the Abyss; wielding techniques of those people may have simply chosen to ignore.
Perhaps this power of the Abyss seems oxymoronic, using darkness instead to expose others of their own wickedness instead of light. Perhaps the powers of the Aether are instead a vehicle to strip humanity of their hopes and dreams. Or is it just simply we're witnessing a bat who just wants to create a little chaos in an already chaotic world?
Whatever the case, anyone that is confronted by the name, Echomotos, cannot help but rethink their ways. Meanwhile those that are exiled cannot help but notice a little burden lifted off of them. A chord is struck and the powers of light and darkness seem evermore mixed, but whether we know it or not, somebody is out there to reshape what light and darkness truly is, in this world and the next...