The Setup, Deception？

Alex opened the blueprint, ready to start constructing.

"Survivor, do you want to build the Automatic Defense Armament System?"

[Yes/No]

Without hesitation, Alex clicked the "Yes" button.

Then, the system displayed the materials needed to construct the Automatic Defense Armament System.

[Automatic Defense Armament System]

Automatic Defense Armament System Blueprint: (1/1)

Steel: (3854/1000)

Cement: (4853/1000)

Water: (Infinite/1000)

Crossbow Arrows: (50/20)

9mm Bullets: (Infinite/100)

With sufficient materials, Alex began constructing the Automatic Defense Armament System.

The blueprint shattered, and then a plethora of defensive devices emerged on the foundation of the barrier walls.

At the top of the walls, in addition to the wire mesh, were numerous sharp blades.

Further down, the walls were covered with broken iron pieces, deterring any survivors from attempting to climb.