Synopsis
Sadaso is one of the three fighters who challenge Gon and Killua on the 200th floor of Heavens Arena, alongside Gido and Riehlvelt.
He is a tall man with slanted eyes, thin lips and a pale, almost mask-like face. He lost an arm to his "initiation" on the 200th floor: he had reached it without knowing Nen, and an opponent's malicious aura attack took his left arm.
Sadaso is ruthless in his ambition and resorts freely to kidnapping and blackmail. He means to become a Floor Master and live off the money and prestige of the rank despite lacking the strength for it, which is why he only ever fights people weaker than himself. His usual register is taunting.
It was his idea to take Zushi hostage to force the boys into a match. Since his injury he had faced only opponents new to Nen, so his own proficiency stayed low — he could not even sense Killua, and was frightened once the boy made himself known.
