Outside, dense raindrops fell incessantly. In the past, when it rained, this transparent rain curtain was hazy and mysterious, and with the ever-rising white smoke, it was extremely beautiful and poetic. But now, this rain curtain carried a sense of destruction, as if it wanted to restart the whole world, constantly washing away everything around it, determined to dissolve it all.

The survivors on the outskirts of the B City base had dug deep tunnels in advance thanks to the base's advance warning. However, the tunnels varied in depth, and they huddled in the narrow tunnels, clutching their meager supplies, shivering and hoping that the acid rain outside would stop soon.

There were also many survivors who didn't make it back in time because the acid rain came too quickly. These people were often the lowest-level survivors. They had to run around every day to get food. If they didn't get crystal cores or earn points, they would go hungry.

No one knew how long the acid rain would last. They had originally wanted to stock up on more food before the acid rain arrived, but they didn't expect it to come just in time.

When acid rain hits a person's body, the already thin clothes provide no protection whatsoever, and are immediately corroded with small holes. The survivors are riddled with holes, their flesh is mangled, and they are in excruciating pain.

Some people were lucky enough to return to their burrows just as the acid rain arrived. Looking at the people screaming in pain in the distance, they felt both relief and fear. They were relieved that they had returned in time and escaped with their lives, but they were also afraid that the acid rain was so corrosive that they wondered if their burrows could really withstand it.

If this acid rain continues for ten days or half a month, at this rate of corrosion, the ground will corrode down to ten or twenty meters. At that time, how will they survive?

Although these people were filled with worry and fear, they all stayed in their burrows and did not go out, for fear of getting even a trace of acid rain on them.

Fortunately, these caves were specially designed by experts at the B City base to cope with acid rain. In order to give these ordinary survivors a better chance of survival, the B City base made the design drawings of these caves public. As long as the acid rain does not corrode the cave roofs, they will not be in danger.

The depths of the holes dug by these survivors varied; some dug deep, even exceeding 20 meters, while others dug shallower, less than 10 meters.

Compared to the survivors on the periphery, the survivors in the B City base were much happier. They all stayed in the underground base and continued to go about their business in an orderly manner.

As long as they don't leave the underground base, they don't need to worry about the acid rain outside.

But is it really that easy to avoid this acid rain?

When the underground base in City B was initially built, the construction area was not that large, so the breeding area and experimental warehouse of the base could not all be moved to the underground base.

However, since safety issues were considered when the breeding area and experimental warehouse were built, underground ore was used for everything. Now, the only change is that the open-air breeding area has been covered with airtight rain shelters made of underground ore.

However, due to the limited time available, there were still some important buildings at the B City base. There was no time to renovate these important facilities, so they could only be covered with tight rain shelters and made full preparations.

However, the acid rain is now too heavy, and the stone slabs in the base city of B City have developed a lot of potholes, which are now filled with water. The important buildings have rain shelters on top, but the bottom is corroded due to the accumulation of rainwater. If this continues, these important buildings will collapse sooner or later.

In the research room at the B City base, Ye Lin sat at the front, with Jiang Yue and Chen Yu sitting below him, and then the researchers from the B City base.

The people present all looked quite grim because of the acid rain outside. The meteorological expert spoke first, "According to our calculations, this acid rain will not last long."

"Moreover, we have predicted another natural disaster that will appear soon after the acid rain, but because the acid rain is currently intense, our calculations have a lot of errors, so we cannot predict what kind of natural disaster it will be for the time being."

Upon hearing this, the expressions of everyone in the room became even more grim. Ye Lin closed his eyes briefly and turned to look at the geological expert beside him. "This acid rain is extremely corrosive. According to our personnel, even the ground has not been spared. Will this have a significant impact on our base?"

After a moment's thought, the geologist said, "It will definitely have an impact. If the acid rain continues to be this heavy, our preliminary estimate is that the ground will sink by at least 5 to 10 meters. Not only will many buildings on our base collapse, but even underground bases built with underground ore may tilt or show signs of corrosion from rainwater."

Jiang Yue and the others frowned and lowered their heads. However, when this underground base was built, only the upper level was constructed using underground ore. The surrounding walls and the bottom walls were all made of ordinary stone.

At this moment, Chen Yu spoke up, "Currently, the superpower team has 355 earth-type and 467 metal-type members. Although the condensed earth and metal shields cannot stop the corrosion of acid rain, they can at least hold out for a while and prevent the acid rain from corroding the outer walls of the underground base."

"As the meteorologist just said, this acid rain won't last too long. As long as we get through this period, we'll have defeated this acid rain."

Ye Lin nodded. Chen Yu was right. Even if they couldn't stop acid rain from corroding the soil, they could at least slow down the rate at which acid rain corroded the surrounding soil.

"Let's do it this way. Gather all the superhumans and get everyone involved in the operation."

Given the resources and capabilities of the B City base, this is all they can do in the face of acid rain; the other bases are suffering even more from it.

Most importantly, once the acid rain gets on your skin, it will corrode and rot. This corroded flesh must be cut off immediately to prevent the acid from corroding deeper layers of skin.

But cutting off the flesh is not the end. The wound bleeds profusely and requires medication to stop the bleeding in time. Moreover, the wound can easily become infected.

People are now trapped by acid rain, and many are having trouble even getting food, let alone doctors and medicine. Even in the bases, no other base can provide so many medicines. Therefore, the mortality rate from this acid rain has increased significantly.

The day after the acid rain, Lin Ruo also realized the serious problem of ground subsidence. The ground had collapsed by nearly 6 meters after only one day of acid rain!

In my previous life, the acid rain wasn't so heavy; it was at most light to moderate rain, so the ground wasn't corroded as much. But now, the acid rain is torrential! In just one day, the entire mountain peak is flooded.