Coruco was at one point the apprentice of the Chief Executioner of Anak, and therefore a member of the Devil's Advocates by default. He and Fumario executed all those sentenced to death by Lords Common and Lord Mayor, and had deals with the butchers of the city to sell the corpses for meat.

He owned a particularly large axe, and was originally going to execute Dran Boldstripe. Dran, however, managed to avoid a death sentence, and Fumario and Coruco's services went uneeded.