The second day of training began with a more serious atmosphere. Each student had been assigned a role based on their combat specialty—frontline fighters for close-range combatants like Holy Knights and Warriors, support units for Healers and Support Mages, and ranged attackers for Archers and Mages. Two mentors were assigned to each group: one as the primary trainer and another as an assistant to provide technical guidance.
Due to his unidentified job, Ren was placed in the support unit alongside Kiriya, who had been assigned the role of an Assassin. Though it seemed odd for an Assassin to be in the support unit, the justification given was that Assassins were not frontline fighters who engaged enemies head-on but rather operated as infiltrators or scouts. However, to Ren, this reasoning felt like an excuse—an easy way to push him aside because they still didn't know how to handle someone with an unidentifiable job.
As the training session began, each group was assigned different physical exercises. The support unit was scheduled for stamina training, running laps around the training field, while the ranged attackers—mostly mages—practiced controlling their newly acquired magic. Initially, everything proceeded as expected, though some students struggled to grasp the extent of their newfound abilities.
However, the atmosphere started to shift when certain students, having just experienced the power of magic, began displaying arrogance. Those who were once ordinary children now felt superior simply because they could conjure flames from their hands or summon gusts of wind with a simple incantation. And for some of them, seeing someone like Ren—whose job was unidentified and who might not even possess any abilities—was an easy trigger for mockery.
As the support unit continued running laps around the field, one of the students from the mage unit sneered and raised his staff, pointing it toward Ren, who was casually jogging at the back.
"Hey, if you don't have a job, why don't you just go home? This world doesn't need dead weight," he scoffed.
Without any further warning, he swung his staff, and a small fireball shot directly toward Ren.
Gasps rippled through the onlookers, some shocked, others watching with intrigue, eager to see how Ren would react. However, what they failed to realize was that while Ren's job remained unidentified, his senses and reflexes were far beyond those of an ordinary human.
As the fireball neared him, Ren subtly tilted his body to the side, avoiding the attack with an almost unnatural level of precision. His movement was so fluid that it seemed as if he had predicted the attack before it was even launched. The fireball missed him entirely, striking the ground behind him and leaving a smoldering black scorch mark.
The entire training ground fell silent.
But before Ren could respond, Kiriya—who had been watching the entire exchange—immediately exploded in anger.
"OI, ARE YOU INSANE?!" he shouted, storming forward with fiery eyes. "THIS IS TRAINING, NOT A DAMN PLAYGROUND! WERE YOU TRYING TO KILL SOMEONE?!"
The mage who had fired the attack merely shrugged, a smug grin on his face. "Relax. I just wanted to see if he could do anything besides running." Some students chuckled, while others remained silent, unwilling to get involved.
Kiriya clenched his fists, on the verge of punching the guy, but before he could act, Ren raised a hand, stopping him before things escalated further.
"That's enough," Ren said coolly. His eyes met Kiriya's, silently conveying a message. "Don't waste your energy on something this pointless. If you give in to anger, you'll only cause more trouble."
Kiriya, still fuming, hesitated before finally exhaling sharply and lowering his fists, though the fire in his eyes hadn't completely faded.
Ren, meanwhile, turned to face the mage who had attacked him. His expression was no longer neutral—it was calm, yet exuded an air of quiet intimidation.
"You wanted to see if I could do something?" His voice was quiet, but there was a weight to his words that made the mage instinctively straighten his posture. "Don't worry… You'll see soon enough."
Without waiting for a response, Ren returned to his position and resumed running as if nothing had happened. But deep inside, he knew one thing—he wouldn't stay silent forever.
Their training sessions weren't just limited to physical combat and outdoor exercises. At times, they had to sit through classroom lectures, learning about the general knowledge of this world—its culture, customs, and royal etiquette. However, for most students, these lessons felt dull, not much different from the subjects they had studied in their old world.
Yet, among them, one person stood out.
Ren absorbed every lesson with unwavering focus, taking in information as if it were second nature to him. To him, learning about this world was a far more crucial step than simply training for combat without a solid understanding of the environment he had been thrown into.
On the third day, they began studying mineralogy, delving into the various metals, crystals, and raw materials used in this world—for weapon forging, armor crafting, and even magical tools. This was a topic that truly piqued Ren's interest, and for the first time, he showed a level of enthusiasm far greater than before. His silver-blue eyes gleamed as he listened intently to the explanations of Orichalcum, Mithril, Adamantium, and other rare minerals that did not exist on Earth.
Days passed, and now it was the fifth day since their arrival in this world. Most students had begun to show progress in mastering their abilities, but Ren still exhibited no significant development. Not because he lacked capability, but because he deliberately chose not to focus on physical training.
Instead, he spent most of his time in the library, reading book after book, digging deeper into the knowledge of this world. He understood that compared to honing external strength, knowledge was a far more powerful and reliable weapon. Unlike magic or abilities granted by this world's system, knowledge was something he could fully control.
As long as he had unrestricted access to the library, he would make the most of it. Because in his mind, to truly master this world, understanding it was far more important than merely refining combat prowess.
Within a week of his arrival, Ren had read and comprehended every book available in the royal library—an achievement nearly impossible for an ordinary person. His learning speed was far beyond that of a normal human, and now, he no longer felt the need to hold back. Every piece of information he absorbed was stored neatly in his mind, as if his brain were a supercomputer capable of processing data in mere seconds.
That night, inside their room, Ren sat leaning against his bed, his eyes focused on a book he had just borrowed from the library. The flickering candlelight cast soft shadows over the pages, filling the room with a tranquil atmosphere.
That peace, however, was soon disrupted by the creaking door as Kiriya entered, dragging his feet and holding a paper bag filled with what appeared to be stale bread.
"Haah... Damn it, the food in this city has absolutely no flavor," Kiriya complained as he collapsed onto his bed. He grabbed a piece of bread, took a bite, and immediately grimaced in dissatisfaction. "Why does this taste more like a rock than actual food?"
Ren let out a short sigh before getting up from his bed. He reached into a small bag in the corner of the room and pulled out something seemingly simple—yet to Kiriya, it was nothing short of a miracle.
A small bottle filled with a creamy, pale-yellow sauce—mayonnaise.
The moment Kiriya saw it, his eyes lit up. "Oi, oi, oi! What the hell is this?! You have mayonnaise?!" he exclaimed, suddenly sitting up straight. "Wait—do you know how to make this?!"
Ren merely shrugged, drizzling a small amount of mayonnaise onto the stale bread before handing it to Kiriya. "Of course. It only took me one attempt to get it right."
Kiriya eyed the bread with curiosity before taking a cautious bite. The moment the flavor hit his tongue, his expression transformed into one of pure delight. "This is amazing! Why hasn't anyone in this world discovered mayonnaise yet?! They need to know about this!" he raved as he took another enthusiastic bite.
Ren sat back down and closed his book momentarily. "The recipe is simple—just eggs, oil, vinegar, and a few seasonings. But I doubt the people here put much thought into culinary advancements."
With their meal now made significantly better thanks to Ren's homemade mayonnaise, Kiriya began recounting his experiences in the city while shopping. With excitement, he described how the markets were filled with unique goods, from high-quality fabrics to exotic spices that didn't exist in their world. However, one thing stood out to him the most.
Reaching into the small pouch he carried, Kiriya pulled out several oddly colored stone fragments—minerals native to this world. The flickering candlelight reflected off their surfaces, giving them a faint shimmer that hinted at their potential value beyond mere decoration.
Ren observed the stones with keen interest. (This is fascinating… If this world contains minerals never documented before, then there's a high chance I can create something even they haven't imagined.)