There are two types of guards. The first one wear orange clothing with white headdress. They also wear straw hat and cape on rainy days. Their clothing mark them as mercenary with firearms. They are first seen escorting bullocks transporting food and ore to Irontown.
The second one wear dark clothing like an assassin of the Muromachi period. The dark guards are mostly seen inside the Irontown protecting the iron melt. Their arms is firearms and swords (mostly Katana). The first one is seen alongside Gonza.