The top brass who command the EDF. During the previous invasion, they devised operations without regard for soldier survival, but reflecting on that, they now prioritize survival rates and actively send reinforcements during crises.

Formally known as the Special Operations Unit Commando. A special forces squad within the EDF. The unit consists of members from Commando 1 through Commando 4.

The tuna invading Earth. In reality, tuna from ancient times underwent mutations, developed a super-civilization, and migrated to space. As soldiers, they rarely engage in hand-to-hand combat, instead operating tuna military hardware. Their primary weapons include the "Maguro," a 12-meter tall bipedal weapon capable of firing plasma cannons, and "Gunships," unmanned UFOs that fire lasers. This time, they have introduced "Red" versions with enhanced conventional weaponry and massive ant-like creatures that attack with fangs, overwhelming with sheer numbers. However, they are not invincible; during the last invasion, their bipedal weapons were destroyed, and they have been modified so that even infantry can destroy them—a feat still possible now. Their flagship is the super-massive space battleship "Maguro-Furnace," which performed laser strikes on the surface upon arrival. Its weak point is the red core located where the turrets were destroyed. Their catchphrase across all soldiers is "Magu." Incidentally, they are apparently inedible.

The leader of the unit the user belongs to and their direct superior. Consult him when in trouble.