My hotel is full of emperors throughout history.

The next morning, as the sunlight began to fall on the slightly worn-out porch of the Time Hotel, the wind chimes emitted a crisp, ringing sound.

The door was pushed open, and Li Shimin appeared in the doorway.

He was dressed casually today and looked much more relaxed than yesterday.

What's even more striking is that he was accompanied by a dignified, graceful, and gentle woman in palace attire.

Although she is no longer young, she is beautiful and has a calming and approachable demeanor.

When Li Shimin entered the courtyard, the first thing he saw was not Chen Mo, but two men with extraordinary bearing sitting inside.

The right spot was the bamboo rocking chair that Chen Mo and Zhu Biao had been sitting in last night.

"Hmph, what time is it? The sun's high in the sky, aren't you up yet?"

Zhu Yuanzhang's impatient tone carried his usual irritability.

"We still have a lot of questions to ask this kid! Such laziness is unacceptable!"

Although Liu Che did not act like Zhu Yuanzhang, his constant stroking of the jade pendant also revealed his impatience.

He glanced at the closed hotel entrance and frowned as well.

"Will future generations all be so undisciplined in their daily routines? I also wish to know the details. This matter of 'productivity' is like a fishbone stuck in my throat."

Upon seeing the two, Li Shimin was slightly taken aback, but quickly regained his composure and took the lead in bowing to Liu Che, whom he recognized.

Good morning, Mr. Liu.

When Liu Che saw that it was Li Shimin, he merely nodded slightly in return, his gaze then drifting towards the entrance of the inn, his mind clearly elsewhere.

Li Shimin didn't care and turned to the unfamiliar old man.

Seeing that the other person was dressed simply but sat upright with sharp eyes and an aura of authority, he knew that he was no ordinary person.

He remained polite and offered a courteous bow.

"Good morning, sir. I am Li Shimin. May I ask who you are...?"

Seemingly surprised by Li Shimin's introduction, Zhu Yuanzhang narrowed his eyes slightly.

But at that moment, he was focused on productivity and didn't have much time for small talk, so he just waved casually.

"My surname is Zhu, and I'm staying at the inn."

Li Shimin raised an eyebrow and looked at Zhu Yuanzhang again, only to find that he looked seven-tenths like Zhu Di.

If that's the case, then it's probably an emperor from the Ming Dynasty.

Li Shimin pondered for a moment, then, seeing Liu Che and the other man waiting anxiously, he couldn't help but ask out of curiosity.

"What are you two waiting for here?"

Upon hearing this, Liu Che became interested.

"We want to continue to ask questions about productivity."

"productive forces?"

Li Shimin was somewhat puzzled; it was yet another new term.

Liu Che smiled knowingly, deciding to keep the matter a secret.

"Lord Li, I ask you, at the height of your Tang Dynasty's power, how much iron could it produce in a year?"

Upon hearing this, Li Shimin pondered for a moment, and after some thought, gave a number that he considered quite large.

"Under the rule of our Great Tang Dynasty, both government-run and private iron smelting are carried out. In years of good harvest, the imperial court will fully supervise the production, and the annual output of refined iron... may reach a million catties?"

Empress Zhangsun listened quietly from the side and also felt that this number was already extremely large, enough to arm a large army and fill the armory.

Upon hearing this, Liu Che shook his head, his enigmatic smile deepening.

"A million catties? Ha... Boss Li, your vision is too narrow."

Li Shimin was slightly taken aback, wondering if he had underestimated the situation.

He gritted his teeth and uttered a number that seemed almost limitless to him: "Could it be... two million jin?"

Liu Che shook his head again, slowly dropping the first bombshell.

"According to that young Chen, our Great Han produces about several hundred thousand catties of iron annually, while their Great Ming..."

Liu Che pointed at Zhu Yuanzhang.

"It can produce about 18 million catties of iron a year."

"What?!"

Li Shimin's pupils contracted, and his gaze towards Zhu Yuanzhang was filled with shock.

Tens of millions of kilograms?!

When Zhu Yuanzhang heard Li Shimin's admiration, a barely perceptible hint of pride flashed across his face, but it was quickly replaced by an even greater shadow.

He abruptly changed the subject, his tone becoming incredibly heavy.

"So what... that kid Chen said that in their future generations, the annual steel production will be—1.3 billion tons!"

"1.3 billion tons?"

Li Shimin was slightly taken aback.

What is a ton?

But... 1.3 billion...

Seeing his expression, Zhu Yuanzhang knew he was clueless, so he added another sentence.

"That's about 2.6 trillion catties of iron, roughly 140,000 times that of our Great Ming Dynasty!"

Boom! ...

This number and comparison struck Li Shimin and Empress Zhangsun like a thunderbolt!

"How many?"

Li Shimin's eyes widened suddenly, and he felt as if his mind had crashed.

"Ten...one hundred and forty thousand times?!"

"Two trillion jin???!!!"

"How did you train this maid, Er'er?"

Even the usually composed Li Shimin couldn't help but swear.

The courtyard was deathly silent.

Zhu Yuanzhang glanced at Li Shimin.

"Are you dumbfounded? After figuring out this number yesterday, I didn't fall asleep until very late..."

As he spoke, Zhu Yuanzhang couldn't help but complain again.

"How the hell did they train like that?"

"I want to know too!"

Liu Che also spoke up.

Li Shimin stood there blankly.

After a long silence, he spoke in a trembling voice.

"Two...two trillion jin? What exactly is this productivity? How could it...how could it create such a miracle?!"

As he spoke, Li Shimin looked at Zhu Yuanzhang and Liu Che, who were still sitting in their chairs, and a surge of heat rushed to his head.

What are you waiting for here?!

Just go in and drag that kid out to question him!

Li Shimin now desperately wanted to know how that thing was born!

He looked towards Chen Mo's room and strode out.

However, before he could take more than a few steps, a hand gently pulled him back.

Li Shimin turned around, only to see Empress Zhangsun shaking her head at him.

"His Majesty."

Empress Zhangsun's voice remained gentle as she gently pulled Li Shimin back to his original position.

"Manager Chen has been working tirelessly yesterday and is currently resting. His Majesty is a wise and benevolent ruler who treats scholars with respect; how can he be disturbed like this?"

Li Shimin suddenly came to his senses and realized his loss of composure.

He glanced at Liu Che and Zhu Yuanzhang sitting in rocking chairs and realized that he had indeed been too excited.

"Guanyinbi is right, it was I... who lost my composure."

After saying this, Li Shimin looked towards Chen Mo's room, but his expression, like that of Liu Che and Zhu Yuanzhang, became anxious and impatient.

"How long does this little brat intend to sleep?!"

"The sun's so high and you're still sleeping inside!"

"This is absolutely outrageous!"