Minsu Kim is the main antagonist of Hero Has Returned. He is the Sword Warrior who turned into a Demon Lord after falling into despair upon returning home from another world only to discover that everyone he cares for is either dead or shuns him, going on a rampage with other corrupted Warriors to make everyone as miserable as him.
Minsu wears a clad white colored full body armor with a white crusader helmet and a red plume attached to it. The armor shoulder part has a diamond shape strap.