Yeah, I feel like Helck having already awakened as a hero from very young and not remembering is a plot point for later. Specially with the whole thing about the crown inducing artificial awakenings in the population.

Makes me think that town was maybe a testing ground for hero awakenings and was attacked on purpose to see if any of them took. Which is likely how Cless was also able to became a hero. Something that I feel would normally not happen.