Underground City

Shockwave Shield—uses high-frequency sound waves to form a shield around the target, reducing the effectiveness of enemy attacks.

High Frequency/Low Frequency—emits high-frequency sound waves over a small area, inflicting indiscriminate damage and stun effects on nearby units; emits low-frequency sound waves over a large area, inflicting indiscriminate slowing effects on all units.

Command Aura—increases the basic attributes of nearby allied units.

Vengeance Implosion—triggers a powerful sonic boom inside an enemy's body, dealing massive damage. This skill has a chance to kill the target instantly. When used against targets that meet the "revenge conditions," the chance of an instant kill increases.

Compared to Vivian's Demon King treatment,

Levi's four skills clearly did not have such outrageous effects.

Still, aside from Command Aura, which leaned toward Underground City development, the other three skills all fit his Awakened abilities perfectly.

Vengeance Implosion in particular was practically a skill awakened solely to help him take revenge on the Mutated Ones.

It was enough to show just how deeply this man hated the Mutated Ones.

After using up the Underground Fortress's two hero slots, Linsey temporarily had nothing left to do.

He asked Tie Yu about the care of the wounded.

After confirming that the medical system was operating normally and there was nothing he needed to help with, Linsey went to the insectfolk to deal with the Mutated Ones' corpses while gathering Prey Material in the flower fields.

Aboveground, the sun rose and set.

In the Underground World, torchlight provided illumination, maintaining an unchanging atmosphere.

After an entire day had passed,

the Underground Fortress's upgrade progress bar finally finished, and the city officially entered the era of the Underground City.

Rumble—

This evolution of Civilization was spectacular, no less impressive than Forest City's.

The relatively simple stone structures from a day ago were replaced