Hishiryn 08-MN Kappa, the Prodigal Pyre Priest, Chief Enginseer
Born on the mining and refinery moon of Ezot Secudunus on a small Mechanicus outpost set up to watch over the world's machinery, Hishiryn 08 is of the 8th designated generation of the world while his Kappa designation marks him out as the 10th child of said generation. MN is short for "Machina Navis" which is a reference to his current role aboard Edmund's ship (previous it was PCP, "Prefectus Conflatorio Prothemius).
From a young age he demonstrated a great aptitude for the learnings of the Machine Cult, quickly and easily taking to its many rituals, rites and ceremonies. Consistently at the top of his class, it was believed that he was fated to be sent to a true forge world to study more and rise through the ranks of the priesthood instead of languishing on a back water refinery moon. However when he was 16, he was in a terrible accident when one of the world's largest refineries exploded while he was shadowing a more senior tech priest. For three days he was trapped under burning rubble, inhaling near lethal amounts smoke and fire and shouting until his voice was burned by the flames it self.
But some how he survived, if only barely. That fire did something to him and he claims to have seen visions of the Omnissiah and the Machine God in the fires. His charred and broken body was nursed back to health but the ashen smoke turned his mind from a devout, promising acolyte, to a fervent pyromaniac with a fanatical faith of fire. Ezot Secundus' religion and culture was always fire based, the local worshipping the Emperor as a fire god who gave them livelihoods through his holy blood and such beliefs even seeped into local Mechanicus, but Hishiryn became obessessed with the "holy fires of the Omnissiah".
The position he was once destiant for was given over to someone else, but Hishiryn cared little. He was engrossed with prothemium, flamers and meltas. By day he would attend almost exclusively to the refinery systems and by night he would meditate surrounded by open flames, letting the smoke and fume fill his prosthetic lungs. His worship would eventually get in the way of his duties as a tech priest and too many near-accidents were catalogued under his watch so the senior clergy of the outpost decided it would be best to have him "exprience the Omnissiah's other gifts" and through political connections got him assigned as a tech acolyte aboard one of the many ships that occasionally entered Ezot's atmosphere.
Over the course of years and decades, Hishiryn's pyromania dimmed, turning from a zealous wildfire into a controlled burn of faith with only the occasional fanatical flare up. He served aboard several ships from short haul merchant vessels, a handful of Imperial Navy vessels of various sizes and even a short stint on an ultimately doomed Mechanicus explorator fleet. His genius, however muddled it was by the fire of his youth, clearly did not dull at all as he proved just as prodigious, adept and skilled at becoming a master of the star ships of the Imperium.
Now at the comparatively youthful age of 47, Hishiryn is among the youngest Chief Enginseers aboard a starship to command tech priest who are older than him. His position was aboard a new Rogue Trader vessel belonging to the Andamar Dynasty, word of his skills having spread far enough to where his talents were deemed necessary for this new vessel to operate.
Hishiryn is excited of his newest assignment, giddy only the vigor of youth can provide. To serve aboard such a rare class of ship is an honor to him while he hopes to use this position as an opportunity to go on a long awaited pilgrimage to forge worlds and tech shrines across the galaxy.