Buzz.
Su Ziyu, who was currently researching the Demon Species of this plane, suddenly heard the sound of an alarm coming from outside.
When he went out to check, he found many people were sticking their heads out of their rooms in panic. A dark-skinned, bald man quickly ran over and said in a deep voice, "Heavy armor formation, follow me."
"Level one combat readiness."
Soon, hundreds of people came out of their rooms, visibly distinct from others in their robust physiques. Some were so muscular that it seemed exaggerated, like small mountains, clearly the result of some level of biological modification.
These individuals entered the equipment depot, and a few minutes later, warriors wearing various types of Exoskeleton Power Armor emerged.
The heavy iron gate slowly closed.
After the inner iron gate closed, another wall descended from the outer layer, appearing like a cliff, sealing off the entrance to the surface perfectly.
