The next moment, their figures vanished simultaneously, then reappeared together outside the fortress's main port.
The World-Deriving Rank expert at the head, dressed in a deep-blue battle robe, calmly surveyed the steel fortress before him, its every inch bearing the marks of war and bloodshed.
The twenty Star Domain Rank guards behind him were like twenty silent statues. Their auras were completely concealed, yet they seemed to form some profound formation, their presence linked to their captain's as though they were one indivisible whole.
Almost as soon as they appeared, the enormous alloy gates facing them slowly opened with a low rumble.
A group of figures in Frontier Legion officers' uniforms hurried out to meet them, led by General Luger.
As an invincible Star Domain Rank expert and the powerful commander of the Frontier Legion, Luger was important enough to speak with ordinary World-Deriving Rank experts as an equal.
However, his expression was far more serious than it had been when World-Deriving Rank experts visited on previous occasions.
The instant the other party appeared and their identification signal reached the Command Center, he had already learned who they were.
The Star Realm Army. The Imperial Guard Corps!
The Star Realm Army was the Human Race's most powerful military force, and it was divided into several branches.
The regular frontier defense, mobile strike, and expeditionary exploration legions formed its core, while the Imperial Guard Corps was an elite force that answered directly to the Supreme Council.
They rarely took part in ordinary battles. Their duties mainly involved guarding important locations, carrying out special classified missions, and protecting certain specific VIPs.
A standard Imperial Guard Corps squad consisted of a World-Deriving Rank captain and twenty elite Star Domain Rank members.
This squad fit the description perfectly, from its personnel and uniform details