A senior bracer originally from Erebonia, he is both Estelle's partner and lover.
Born in Hamel, he is one of the few survivors of the tragedy that took place there. He joined Ouroboros shortly thereafter as Enforcer No. XIII, the Black Fang. During his time with the society, Joshua performed numerous espionage and assassination missions. However, he was rescued by Cassius and Estelle. He joined the Bright family and chose the path of a bracer.
During his bracer work, he ended up partnering up with the SSS to help resolve the cultist incident in Crossbell. Afterward, he and Estelle welcomed Renne into their family.