Arkius Doomer was born in an indeterminate year, between 51,750 BBY and 50,000 BBY, on Zekrotopia at his family's ancestral home, Minas Naear. At what Zekrotopians would consider a young age, he began combat training, and for many years he trained with his brothers, sisters, cousins and friends, until shortly before the Second Great Valyrakyr War began.