Vestigal was born on a moon called Nakamura, the son of a battlecruiser pilot known to us as Yaemon. Vestigal's childhood name is recorded as Hiyoshimaru, or 'bounty of the sun' quite possibly a later embellishment contrived to give substance to a claim of divine inspiration.

One of the most remarkable men in his family, Skilled in economics. Natural tactician. Vestigal rose to finally end the Empyrean Age. In fact, little is known for certain about his curent career, the year when he begins to appear in surviving documents and letters.

The autobiography he commissioned begins with the year 2008 (the year he came into his own with an independent command to fight the BRL) and Vestigal himself was known to speak very little if at all about his past.