One of the Six God Generals in Tales of the Abyss, a quick-footed fighter who always wears a mask until Guy Cecil destroys it. Sync is very cold and ruthless, showing total disregard for others' lives and feelings. In his final battle, Sync even wants to destroy the world that would give birth to a monster like himself.
He is the fifth replica of the original Fon Master Ion, but was considered 'garbage' and thrown into a volcano.