Why was Argus an enemie of Hermes?

Argus, a giant with many eyes, was tasked by Hera to guard Io, whom Zeus had transformed into a heifer to hide from Hera. Hermes, sent by Zeus to rescue Io, became an enemy of Argus when he cleverly lulled the giant to sleep with music and storytelling before ultimately killing him. This act of defiance against Hera's command positioned Hermes as an adversary to Argus, who was devoted to his duty as a guard. The conflict highlights Hermes' cunning nature and his role as a protector of those sought after by the gods.