What happened next was logical. The tribesmen were tortured, and to remove the concrete from their bodies, one had to use the concrete superpower.
The protagonist realized that he could replicate the powers of other people with superpowers by touching them. In order to save his people, he had to rush to Seattle and get Augustus's power.
Although the older brother didn't agree with this plan, he still couldn't persuade his younger brother. The two of them drove to Seattle.
When he arrived at the siattu city, the protagonist found that the roads had been destroyed. The roads were full of roadblocks, and the bridges had been blown up. He could only walk.
During the journey, the protagonist accidentally discovered that he could strengthen himself by absorbing smoke, energy fragments of the drone, and the relay core. The functions were to obtain energy, upgrade the skill tree, and unlock new skills, respectively.