At that moment, four other female students took their positions around Mr. Arcturus, their stance protective like loyal guards surrounding their king. Two of them stood on each side of the teacher, as if creating a defensive barrier against any possible harm that might befall him. Meanwhile, the remaining students, guided by Kazimir, made their way towards the rear section of the storage room.

The teacher, Mr. Arcturus, looked at the group of four girls standing next to him, a lopsided grin appearing on his face as he scratched the back of his head. "Hello," he began in a friendly tone. "I'm the new teacher here, and I'm a bit confused about what's going on. Care to fill me in?"

But the girls remained silent, their faces betraying no signs of response. Undeterred, Mr. Arcturus persisted. "Is this the modern way of surprising people?" he asked, attempting to lighten the mood with a dash of humor. Upon being met with yet more silence, Mr. Arcturus was at a loss for words. He scratched the back of his head, clearly baffled by the situation at hand.

Mr. Arcturus chuckled heartily, attempting to keep the mood light despite being met with continued silence from the students.

"Ah, that's right," he laughed. "I almost forgot that I should join in too," he said, a hint of sarcasm in his voice.

The students, however, remained unresponsive, their expressions unreadable as they watched their new teacher struggle to engage with them.

Just then, a student standing just behind Mr. Arcturus couldn't help herself and let out a grumble of disdain, expressing her discontent. "That disgusting bastard!" she muttered under her breath, her annoyance apparent as she clicked her tongue in disapproval.

Meanwhile, another girl stood in close proximity to Mr. Arcturus, her expression filled with irritation. "I can't stand being here," she thought to herself. "But that damn 'four-eyes'—ah, damn it!" Her gaze hardened as she fixed her eyes on Zora who seemed to be awaiting something.

After a while, a group of students, led by Herus, came back to the classroom. They were carrying a rectangular wooden frame with rollers on both ends, slightly raised from the ground. They carefully set it up in the middle of the room, making sure it was sturdy and working properly. When they finished, they shouted “RD!”

Kazimir’s group followed suit, carefully transporting a long, narrow, pitch-black box, resembling a coffin. They positioned it beside the rack with precision, ensuring its stability and integrity, understanding how crucial a flawless setup was to their plans. With a coordinated signal, the entire team exclaimed "CD!"

Finally, three boys came in. They quietly moved to Zora’s hidden corner, their secret spot in the school. Hidden in three heavy sacks were tools that were considered forbidden, tools that were only talked about quietly, used for a secret purpose. The atmosphere was tense as they carefully showed Zora what was in the sacks. Their hearts were beating fast with a mix of fear and determination. Each of the forbidden tools, carefully chosen for their effectiveness, hinted at a darker plan, kept secret by their shared resolve.

In simpler terms, the sack carried by the boys contained a variety of tools, some of which are typically used in medical or hunting scenarios, and others that are more ominous. These included an orthopedic bone saw, a wire saw, a Wartenberg pinwheel, a set of knives, a Gerber hunting bone saw, another bone saw, tongs, a neck trap, pliers, a device known as the Scavenger’s Daughter, scissors, shackles, and more.

“Here,” said a man with a mystifying presence, his gaze unwavering and a glint from a piercing catching the light in his right ear, spoke with detached firmness, “We made sure all the tools work properly.” 

Zora, his eyes fixed upon the contents of the sack, affirmed, "Good work, Saros." However, a hint of expectancy laced his tone as he continued, "But the code must be spoken together with your group."

Saros sighed first and together, they all shouted “TD!”

After Saros had his turn, he threw the heavy sack towards the middle of the classroom, where the rack was ready to catch it. His action led the way for his friends, who quickly did the same, putting their own full bags next to the sack Saros had thrown.

Looking at the carefully set up classroom, Mr. Arcturus saw a worrying scene. Among the neatly arranged tools and equipment, one thing stood out—a rack, like something used for torture, placed in the middle of the room. Mr. Arcturus, understanding the silent message of the setup, realized one thing: there was a clear threat, suggesting that something bad might happen to him. The carefully planned display said a lot, hinting at danger in a way that only those caught in its scary situation could understand.

When Mr. Arcturus saw the rack in the middle of the room, he didn’t react much. He wasn’t scared, worried, or anything at all. Instead, he was filled with curiosity. He wondered how the students managed to acquire such unusual tools. He also pondered how they came up with this elaborate setup. It seemed to him like a plan that must have been in the works for quite some time.

With a worried look on his face, Mr. Arcturus turned to the girls next to him, clearly upset. “Are you planning to torture me?” he asked. His voice was filled with fear and disbelief as he asked for clarification. In reality, Mr. Arcturus wasn’t actually scared or upset deep down. He simply understood that the students wanted to see him appear frightened, so he played along with their expectations.

The silence that came after his worried question was very loud. None of them said anything.

Zora’s voice broke the noticeable tension in the room and said, “We have three codes. We’re waiting for the fourth to start the process,” while looking at Mr. Arcturus, who appeared to be worried about what might happen to him. 

When the students saw the teacher’s hopeless expression, they couldn’t help but laugh. This class had a mindset that showed no mercy. At this moment of determination, their only goal was to see their teacher fail. Regardless of how dire the circumstances became, their sole focus remained on Mr. Arcturus’s downfall.

With a worried voice, Mr. Arcturus asked, “Can anyone explain what’s happening here?” He asked this even though he had a good idea of what they were planning for him. Actually, he felt like laughing along with them, but he knew that would spoil their enjoyment.

Zora’s voice broke the tense silence as he acknowledged the unanswered question. “This plan,” he started, “is called T4L5. ‘T’ stands for Torture; ‘4’ is the number of letters in the word ‘RACK.’ The meaning of ‘L5’ will be revealed soon.” 

He turned to the girls around Mr. Arcturus and gave a scary order with a disturbingly calm voice. "Prepare him—"

Mr. Arcturus suddenly interrupted Zora, sounding desperate. “No, that's not what I meant, dear,” he said quickly. His voice faded as he suddenly looked at something outside the classroom window. Zora was taken aback and felt confused because he didn’t understand what Mr. Arcturus was even talking about, especially since it was so unexpected. 

Mr. Arcturus quickly raised his voice, sounding urgent. “Look, outside!” he said, pointing to something happening far from the classroom. As they shifted their attention outside, they saw a person being restrained by another, handcuffed and lying on the ground. 

In a voice filled with worry and confusion, Mr. Arcturus asked for an explanation while looking outside. “Why is Zyair being restrained?”