This class was equipped with eight Boeing Harpoon Surface-to-surface missile as the key weapon system whereas traditional Japanese frigates weighed heavily on the Anti-submarine warfare. According to this mission concept, its predecessor's Mark 16 GMLS for the ASROC system was removed.
This class was armed with eight Boeing Harpoon Surface-to-surface missiles as its primary weapon system, while traditional Japanese frigates relied heavily on Anti-submarine warfare tactics.  The mission concept involved replacing the Mark 16 GMLS for the ASROC system from its predecessor.