Red Fire Martial City is surrounded by mountains on three sides, and the Spirit Crystal Vein defense zone of the Red Fire Subdivision is located deep in the northern mountains, approximately eight hundred miles from Red Fire Martial City.
For martial artists with riding mounts, a journey of eight hundred miles is just over half a quarter-hour's work, which is one of the reasons why the defensive strategy of the Red Fire Subdivision can be successful.
With a journey of eight hundred miles, the Red Fire Subdivision can rapidly provide support in the event of an attack.
