The Purgatory Corridor Academy, a giant classroom resembling an arena, has dazzling spotlights illuminating the walls on all sides.

Rather than a typical square design, the classroom presents an oval-shaped arena interior structure with circular seating like auditoriums, with floors upwards and the last row almost touching the ceiling.

Now, halfway through the fourth period.

And in the center of the arena, there are demons engaged in fierce battles.

In the back row of the audience, a brother and sister sat quietly and waited.

[3 hours and 30 minutes remaining]

[Goal 1: The exploration degree of the academy is over 60%, and the current progress is 748%]

【……】

They were the silver-level challengers of the Holy Teaching and Research Society, and they had previously wondered if there were demons among the challengers, but now they were silently paying attention to the changes in the mission objectives of the Shadow World.

It's like it's broken.

Originally, at the beginning of the fourth period, the progress was only 40%, and then it began to skyrocket at an extremely outrageous rate.

Although the two of them also found that after exploring the school, according to the size of the school, if the teaching area is explored, the degree of exploration is definitely more than 100%.

But correspondingly, 100% should be the Shadow World's calculation of the development limit that all challengers can complete in 12 hours according to common sense.

But it's clear that this is beyond common sense.

At present, this number is still jumping every once in a while, and it continues to grow!

The siblings had no idea what was going on!

At the end of the third lesson, everything was still normal, and it was easy to see from the change in exploration that all three teams had cleared the difficulty 3 classroom, which increased their progress by a total of 18%.

After the investigation of the previous classes, the brother and sister also learned some information - there will be an uninvited guest to inspect the academy tonight, and this visitor seems to make the senior teachers feel afraid.

[Objective 2: The Source of Danger Tonight] must refer to the "Ranger".

What exactly is their identity, what their intentions are, and how they relate to the humans lurking in the Demon Academy, it will take three groups of challengers to converge and exchange information in order to piece together a key that is enough to solve the puzzle.

This is the right mechanic for this movie world.

However.

No matter how the two siblings left clues and codes between classes, trying to contact the other four challengers, the other challengers didn't seem to have the slightest intention of coming to join them!

In the shadow world where the beginning is scattered and the identities are hidden, if the challengers don't find a way to connect with each other, they can't know who is who.

In this case, the correct challenge strategy must be to abandon entering the classroom in the fourth period and do your best to find other challengers for cooperation.

Just now, the school issued an emergency new rule -

[All students are required to return from the functional area to the teaching area, and must enter the classroom in the fourth period, and are not allowed to leave.] A large number of teachers will begin patrolling the corridors, driving any students into the classroom if they find them, and killing them if they still disobey. At the same time, all difficulty 3 classrooms will be closed during the fourth period. 】

This kind of joking rule is like this movie world suddenly accelerating into rampant mode!

The brother and sister had no choice, so in order to save their lives, they could only enter a difficulty 2 classroom first, and then spend one class time.

"Brother, could it be that someone misoperated and caused the dangerous mechanism to be advanced......

The girl's voice trembled, and her empty eyes seemed to be looking for some kind of hope to grasp, but she couldn't find it.

“……”

The young man bit his lip, not knowing how to respond.

His heart was also filled with endless fear and anxiety, almost devouring him, but he knew that he could not increase his sister's panic as an older brother.

“…… Don't worry. ”

The young man muttered to her, comforting her.

Since the first lesson, he has been observing changes in the degree of exploration, using this to infer at what time and when the other teams entered the classroom......

Although the two challengers have been attacking the classroom step by step in the teaching area, and the progress is similar to that of the two of them, they have no intention of converging at all, and their attitude is very strange, as if they don't care about whether the movie world can be cleared at all.

And there are two paddling monsters, who have the ability to clear difficulty 3, but they didn't enter the classroom in two of the second to fourth lessons! It seems that I have been running around in the ribbon area, and I can't find anyone at all!

"Goddess-sama...... We haven't done anything bad, why did we come to such a demon academy...... If you're willing to shelter us, please send someone to save us......"

The girl bowed her head and clasped her hands tremblingly in prayer.

When one can only pray to the gods, it is almost complete despair.

Just then, the door to the classroom was pushed open.

The sound of the door lock opening echoed through the classroom, making it particularly harsh.

Then, a large group of demonic teachers walked briskly into the classroom, their steps steady, as if to make way for someone waiting behind the door.

Such a sudden intrusion immediately attracted the attention of all the demon students present, as if time had pressed the pause button.

Next, behind the door, like a leader, a glow demon with black hair and green eyes walked in.

His steps paused slightly.

Glanced around the classroom.

"Here, send all the students in this classroom to the principal's office."

The Glow Demon immediately ordered the classroom to be terminated and escorted all students to the principal's office.

There was a feeling that the prisoners were going to be sent to concentration camps.

The young man and girl in the back row felt all thoughts disappear for a moment.

It's finally time to come.

But they don't understand, what kind of mechanism the entire movie world has been messed up into, and it will provoke the principal to personally erase them!!

The Glow Demon seemed to sense the uneasy atmosphere in the entire classroom, frowning slightly.

"Don't worry, students, the principal's room is not dangerous and spacious. Now that the school is facing a surprise inspection, there is a risk that the curriculum in this classroom will not be compliant, and I will let you avoid it for the time being. At the end of the fourth period, you will return to school, and the school will compensate you with 3 credits per student, the principal assures you. ”

The Glow Demon raised his hand, motioned for all the demon students to calm down, and said quickly.

Suddenly, all the demon students fell silent, and even their expressions couldn't help but be surprised by this unexpected joy.

Naturally, they didn't doubt the headmaster's words very much.

Because this president is accompanied by many senior professors, it is not necessary to be so complicated to harm them.

The brother and sister in the back row looked at each other with bated breath, and the unease in their eyes was mixed with confusion.

How do you feel that this principal is helping them?

Or even to protect them?

But no matter how you think about it.

Only the headmaster of the Demon Academy, this glow demon is impossible to help the challenger!

His unfathomable temperament, the supreme power that makes all powerful demon teachers respect him, is undoubtedly the most evil and terrifying leader demon in this shadow world!

It must have been the school that was in some trouble, so that the process of the film world was just right, and it gave them a slight turnaround.

The mechanics of the shadow world become, although the more you watch it, the more you become more and more confused.

But now, it seems that there is a little more life for the two siblings!

(End of chapter)