Chapter 110 A Huge Insect Nest

Thinking of this, Ike immediately went to check the wall outside the shelter.

The wall material had been upgraded several times. It could resist all kinds of disasters and had a good anti-corrosive performance.

But just in case, Ike still strengthened the anti-corrosive performance of the outer wall.

"System, upgrade outer walls and doors, to enhance the resistance to acid rain." Previously, Ike had used a lot of special compound materials to the anti-corrosive properties of the protecting walls. Therefore, if he wanted to continue to upgrade, he would need more advanced materials, special meteorites.

"Upgrade succeeded!"

This time, the upgrade consumed a lot of Ike's special meteorites, but the anti-corrosive properties of the outer walls and doors of the shelter had been greatly improved.

It was enough to deal with the erosion of the corrosive rain.