Joshua is short, his build changed from small and twig-like to lean and muscular after a time. He had scruffy brown hair which he cuts himself. He has thick horn-rimmed glasses and the Jusenkyou-green eyes behind them. Like every Jusenkyou male he has a straight pointed nose and a chiseled-looking jawline.
Joshua was born in year 20 of the Age of the Dragon. At the age of 3, he was kidnapped by his father and taken to live in the Underworld, where he remained until age 10, when he and his father led an attack on the Slayer Dragons. The attack was unsuccessful.
Service in the Foundation
During the Long Night, Joshua lived at Gudersnipe School where he held the status of Instructor but did not teach, and spent the time building weapons for the Gudersnipe Foundation. His greatest achievment was the G.S.S. Lina Rowen, widely regarded as the most powerful starship ever constructed.
Upon retiring from the Foundation at the conclusion of the Long Night and beginning of the New Day, Joshua married Lily McConery and settled on Moon Garm, where he had two children: Conri Jason Jusenkyou and Rebecca Jusenkyou.
Due to an unexplained cause, Joshua has a perfect eidetic memory, but only for things in book-form. Jason theorized at one point that it was some combination of a brain-injury resulting from oxygen deprivation and the genetic memory he gained as 1/8th dragon.