Doomsday Bunker Upgrade - Chapter 27

Chapter 27: My First Upgrade!

“Cough!” Chen Xin choked and woke up.

It was Chen Xin’s third day in the bunker. After two days of adjustment, Chen Xin felt like he had already adapted to life here.

It was just that the whole bunker was filled with smog which choked and woke him up.

Chen Xin got out of the bed and switched on the lights as he coughed and covered his mouth.

He tremblingly put on his clothes, but still felt dizzy. Even his breathing was ragged.

Chen Xin knew that it was not because he was only half awake. It was because he inhaled the harmful gases in the smog which made breathing difficult.

If he did not wake up and continued to sleep, he would most likely be dead due to anoxia or severe intoxication.

Chen Xin came to his senses and hurriedly found the gas mask and oxygen tank from the cupboard. After he took a few breaths of oxygen, he put on the gas mask.

At that moment, Chen Xin finally felt at ease. Only then did he have time to think about what happened.

There should be no fire outbreak because he had not started any fires earlier. He had only used an induction cooker for boiling water.

However, Chen Xin did not think too much. He ran to the garage, picked up the fire extinguisher from the trunk, and started to inspect every inch of the bunker.

What made it stranger was there were no fire outbreaks, nor were there any smoking points.

Where did the choking smog come from? Obviously, those gases were the result of something being burnt! Chen Xin did not believe that there was no fire at all!

When Chen Xin circled back, he finally found out that the smoke was coming in from the ventilator.

That discovery made Chen Xin realize that the outside was on fire!

It had just been two days, did the fire caused by the impact finally reach here?

That also made Chen Xin feel helpless. Even if he knew the cause, he could not solve the problem.

That was a fire that spread through the entire world and most plants would be set ablaze. Although Chen Xin had not gone out, he believed that the mountain above the bunker had caught on fire. Otherwise, there would not be so much smoke in the bunker.

Not to mention the ventilation system was specifically designed to filter smoke and harmful gases under normal circumstances.

Nevertheless, given the current situation… The concentration of the smog had already exceeded the ventilation’s limit.

Chen Xin felt helpless and hopeless at that time. Would he suffocate to death?

Although he prepared gas masks and oxygen tanks, those items had a functional time limit.

In an environment where the smoke gradually got denser, the gas masks could only last a few hours before the filter had to be changed, even if the quality was good enough. The oxygen tank could only last him for about two hours.

According to Chen Xin’s estimation, the fire in the mountains would not last very long as it would be extinguished due to the drop in temperature as a result of the sky being obscured by dust clouds. Even so, it would still last for several days or more than a week.

Originally, Chen Xin thought that his bunker’s ventilation was sufficient, but reality had given him a merciless slap.

The ventilation that Chen Xin was so confident of obviously could not withstand the fire outbreak in the mountains. If Chen Xin could not figure out a solution, he would suffocate to death when his gas masks and oxygen tanks ran out.

Escape? That idea was obviously impossible.

The smoke had already gotten into the bunker, it was conceivable that the outside was surrounded by flames. Even if Chen Xin opened the door and ran out, he would only turn from smoked bacon into a roast duck.

Even if he could make it out, where could he possibly go?

The fire was not only at his mountain but had spread throughout the entire world.

At that moment, ninety percent of the plants on earth had been set ablaze by the heat released from the impact. Every surface on earth caught on fire and there were no places to escape to.

There may be no flames on the sea, but how was Chen Xin supposed to travel from inland to the coast?

All transportation systems had been shut down due to the meteorite impact. There may be secret routes in the country, but why would it be opened up to an ordinary person like Chen Xin?

Plus, if he could use the secret routes, why would he still need to run? He could have just stayed in the country’s secret bunkers.

As for the official bunkers, those were indeed an option.

The main problem here was, how should Chen Xin convince the officials to open up the door under the blazing heat?

As a matter of fact, Chen Xin had built a twelve-centimeter thick explosion-proof metal door. Even if you hit the doors with sledgehammers from the outside, the people inside might still not be able to hear you let alone knocking with bare hands. Plus, Chen Xin even installed double layers for safety reasons.

One could only imagine how the gates of the official bunkers would be like.

That was why Chen Xin had never considered escaping from the beginning.

However, if he did not escape, what should he do to survive?

The ventilation system had already reached its limit. Unless he could upgrade his ventilation, otherwise he would end up suffocating to death in the bunker he built for himself!

Hold on! Chen Xin roused and realized he had neglected something important!

He could actually upgrade the ventilation because he had The System!

When he thought that, Chen Xin immediately opened up the user interface and directed his sight onto the ventilation duct.

As expected, the ventilation duct in his view lit up, and an upgrade plan appeared.

“Natural ventilation system”

“Upgrade plan 1: Upgrade filter material, improve air filtration level, increase forced mechanical ventilation function, upgrade required survival point 100”

“Upgrade plan 2: Upgrade pipe material, increase insulation level, increase temperature adjustment function, upgrade required survival point 100”

Chen Xin chose the first upgrade plan without hesitation.

As he confirmed, the grid-like light appeared again as it did when the system was booted for the first time. The light only covered the ventilation duct at that time.

Soon, the brightness dissipated, and the ventilation ducts had been renewed. The upgrade had been completed.