@KeiosKod, IIRC Awakened Heroes are just a natural phenomenon where certain humans would be born with enough strength to obtain high levels. It was implied that in the past, heroes were much more common before the era of Helck and Cless. There were spells that could forcibly Awaken people into Hero levels, but that would result in them running into the risk of snuffing their ego out, becoming Dark Warriors, or outright New World Organisms.
The Contacted, people who were spoken by the Will of the World, were potentially given Awakened levels, but they'd (mostly) become obsessed with using their power to bring about the New World. Mikaros wasn't a hero at all prior to being Contacted after he faced Azudora, but he gained near immortality and super regeneration along with great magic. On the other hand, Raefeed was a naturally Awakened who gained the ability to reincarnate, lifetimes before being Contacted (and even then, it only lasted for one life, the rest was just him remembering what the Will had told him, he wasn't consumed like Mikaros).
It was basically outright stated that Helck was a naturally Awakened Hero when the Will contacted him, but he was able to suppress it, so he basically got double buffed.
The real question is, is this a prequel or a sequel, or an AU?