In another world, Lu Mingfei is learning card making.

"This is truly... a brilliant method." Lu Mingfei and the red-robed monk studied it together for a long time and finally came to a conclusion.

"The most valuable part of that dragon scale might be encrypted. Even with your bloodline awakening through the comprehensive network, you couldn't 'decompress' the 'mysterious' module." The red-robed monk's expression was serious, his voice low:

"This means that even if this precious item falls into our hands, we still won't be able to decipher it; while our opponents can use the excuse of 'acquiring a high-value item' to launch an attack on us."

"Until I succumb to that demon's feet." Lu Mingfei closed his eyes, took a deep breath, and exhaled. "Alright, then we'll have to activate the backup plan."

"I hope St. Marian can help me grow enough..."

After finding a bed in the hospital, Lu Mingfei held the red-robed monk's hand and closed his eyes.

After the familiar dizziness subsided, Lu Mingfei sat on the familiar bed. He lay down on the soft mattress, breathing in the scent of cashmere—or perhaps not, but Lu Mingfei would pretend it was for the moment.

The red-robed acolyte didn't need him to give any further instructions; he left the room on his own and went to the library.

Lu Mingfei closed his eyes and began to sleep.

—There was no other way; the Spark was practically his only trump card for survival. If the Spark slot was empty, Lu Mingfei didn't even feel safe.

If it weren't for the fact that he could only restore his spark once every 24 hours through sleep, he would have preferred to go to sleep as soon as his spark ran out, rather than waiting until night to sleep.

The next day, Monday.

As usual, Lu Mingfei continued his morning exercise routine. After 21 days of this regular life, he found that he had gotten used to going out for a run in the morning to energize himself for the whole day, without even needing the red-robed monk to urge him.

"I remember reading an article that said you can form a habit in 21 days, and it seems to be true."

Compared to him, Rong En is the one who has truly become lazy. Perhaps because the weekend night outings have been moved to weekdays, Rong En now needs to be called by him every day, which is the opposite of when he first arrived.

After washing his face and eating, Lu Mingfei leisurely sat down in the classroom, one hand propping up his chin, looking utterly bored. Rong En, too, had lost his usual energy, lying wearily on his desk.

"So, I'm saying—" Lu Mingfei couldn't help but glance at Rong En, who looked like he was about to fall asleep any second, "Why are you so sleepy? Didn't you sleep last night?"

Rong En struggled to his feet, assuming a proper sitting posture, without replying. Lu Mingfei turned his head and saw Professor Lintel floating into the classroom.

"Collect the homework from last class." Lintel's voice wasn't louder than a whisper, but it easily reached everyone in the classroom. "If anyone hasn't done their homework, I'll ask them to leave my class."

The students took out their notebooks and handed them to their respective "persons in charge" according to their college. Rong En was the "person in charge" of the Knights College. This was not because the students elected him, but because he sat in the last row and could collect all the homework from the entire college by simply walking around while handing in his own.

He neatly arranged a stack of workbooks on the podium, glancing sideways at the workbooks from the Noble Academy next to him. The top workbook was open, its first page filled with writing, but Rong En could immediately see that the symbols marked on the ink were exactly what Lu Mingfei had taught him last week!

Rong En clenched his fists, quickly walked back to his seat, and without hesitation, tore a piece of paper from his notebook, began writing rapidly, and then handed it to Lu Mingfei.

……

"That set of hero numbers is also being used by the Noble Academy."

When Lu Mingfei saw this line of text, he was stunned for a moment before he realized that Rong En's "hero numbers" referred to Arabic numerals.

There was nothing he could do. In his eyes, teaching Rong En numbers was something that happened more than a week ago. Now, when it came up, all he could think of was the suggestion that "two 1s represent 2," a suggestion that he still couldn't understand.

But... the House of Nobles is also using Arabic numerals?

Lu Mingfei stroked his chin, and began to ponder.

This matter, while not a huge deal, is certainly not insignificant. The use of Arabic numerals is a minor issue; the fact that someone knows how to use them is the major one.

It's important to understand that Arabic numerals are a decimal representation that evolved over a considerable period of time on Earth. Even if something similar existed in this world, it would undoubtedly have undergone a different process of change, ultimately resulting in a symbol that differs in shape, curvature, and many other aspects.

In other words, the ability to use Arabic numerals means that the House of Nobles also has people from Earth!

Lu Mingfei clenched his fists, took a deep breath, and squeezed the stack of papers into a ball.

—These are all irrelevant. What's important now is to create two more cards and truly form a fighting force.

Although the Living Spirit's human transmutation combines control and instant kill, her target can only be 'one person'. Whether it's creating another solid front-line wall or a back-line unit, as long as it's different from the Living Spirit's role, it's acceptable.

The morning classes passed quickly, and Rong En and Lu Mingfei walked back to their dormitory together. Halfway there, Rong En's expression turned serious:

"Lu, what do you suggest we do about this?" He gritted his teeth, a rare look of anger on his face. "Shall we kidnap a student from the academy of nobles and force him to tell us where this thing came from?"

"Should we go directly to the teacher and explain the details?"

"Rong En, calm down." Lu Mingfei glanced at him with a hint of helplessness. "You know what kind of people are in the Noble Academy. I'm only responsible for myself, so I'm not afraid of their retaliation. Aren't you afraid?"

"This..." Rong En fell silent, his clenched fists unable to relax.

"So if he doesn't want to escalate this, we can only leave it alone." Lu Mingfei clapped his hands and made a judgment. "Besides, if we have to say what this is about, aren't we doing it too? It's just that I only taught the two of you, while that person from the Noble Academy taught many people."

Rong En nodded, then suddenly asked, "That guy from the Noble Academy, how did he get the number of heroes?"

Lu Mingfei glanced at him sideways and replied, "I don't know."

"?"

Seeing Rong En's confused eyes, Lu Mingfei could only explain further: "I really don't know. It's knowledge obtained from the dream of the hero, and I don't know whether those who went there before passed it on after obtaining it."

"Did the people in that noble academy obtain their knowledge from their parents, or was this knowledge actually invented long ago but not passed down, and was instead included in the legacy by a certain generation of heroes...?"

"All of these are possible."