A world with an inversion rate of 2.66%.
(The question after that is…… The monster strengthening that takes place over time.)
With a small huff of breath, Akira shifted his gaze from the screen of his phone to the screen that was floating in midair.
――――――――――――――――――
Current global inversion rate: 2.66%
――――――――――――――――――
The blue-white screen displayed was the one that Akira had called up just a few moments earlier.
Nao had told him how to call up this screen as well.
Apparently, whatever it was, it appeared and was discovered when someone mentioned 『progression』 as a trial after the existence of levels, skills, and statuses was revealed.
According to Nao, the numbers on this screen seemed to increase by 1% with each passing midnight.
(1% when the date changes…… It used to be 1% in half a day, so things sure are slowing down.)
Akira had already realized the reason for this.
It was just before he fainted after defeating the Minotaur. Akira was sure that he saw the words "Defeating a boss monster has decreased the progress of the world inversion rate" displayed on the screen, which appeared one after another, just like a computer screen infected with a virus.
And Akira was not the only one who saw the screen.
Immediately after Akira defeated the Minotaur, the screen was displayed before the eyes of the entire world.
Initially, the mystery of that screen also generated a lot of discussions, but the survivors guessed when the world reversal rate exceeded 1% and a screen appeared informing them that the monsters would be strengthened.
This meant the time.
It was the time limit left for mankind.
The more this reversal rate advanced, the more adversity mankind would face.
If one wanted to survive in this world, one had to kill the boss monsters that lurked in the cities.
(……In every city where monsters appear, there is always one monster that is stronger than the others. Unless that guy, who is the boss of the city, gets killed, the reduction in the inversion rate will not occur. Should I focus on killing those bosses first? ……The strong monster in this city was the Minotaur, right? I'm pretty sure that when I killed that guy, I saw a screen that said the world inversion rate or something like that had decreased.)
That minotaur was stronger than any of the monsters that lurked in the city by a wide margin.
He didn't know why at the time, and he was just angry at the unreasonableness that existed there, but…… If one were told that that was the boss, it would make sense of its strength.
(Nevertheless, a boss, huh……?)
Muttering in his mind, Akira creased his brow.
(The way the screen is worded, it's not so much that another world has come…… Wouldn't it be more accurate to say that cities around the world have become "dungeons," as in video games?)
The answer to that thought remained unknown.
But there was only one thing that was known.
It meant that the world was full of monsters and humans were given the concept of levels, skills, and status.
And if you did not want to die, you would have to buy yourself time to strengthen yourself by defeating the boss monsters that nestled in the cities.
(Although now the inversion rate is already over 2%…… When I asked Nao-san, she had yet to give me any information that a second strengthening had taken place. that is to say――――)
He thought the strengthening would take place on a percentage-by-percent basis, but apparently, that was not the case.
If anything, would it be more correct to think of the strengthening as taking place when a certain percentage was reached?
(Before that, you mean if I defeat the next boss, the progression will be even lower?)
That was all that was known at this point.
Akira let out a loud sigh and muttered to no one in particular.
"What am I going to do now……?"
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