Sky Curtain: With a vermilion mirror, Jing travels through the modern world, shaking all dynasties.

In front of the subway platform, Jiang Chuan held Zhu Jingjing's hand tightly, waiting for the subway to arrive.

"What are those two metal rails for, and why are they blocked by glass?" Zhu Jingjing asked curiously, pointing to the railway tracks below through the protective glass door.

"Those are the tracks used by the subway, and the glass is for our safety," Jiang Chuan explained simply. After all, explaining the working principle of the subway would probably take all day, and Zhu Jingjing might not understand it.

"Protect? Is the subway dangerous?" Zhu Jingjing gripped Jiang Chuan's hand slightly tighter, seemingly a little nervous.

Jiang Chuan quickly patted her head and reassured her, "Don't worry, as long as we follow the rules, there won't be any danger."

As they were speaking, a long silver dragon rushed towards them, causing Zhu Jingjing to exclaim in surprise.

"This is..." Zhu Jingjing gasped, her mouth agape as she stared at the long dragon that had stopped before her. "What kind of monster is this? I've never seen anything like it before!"

The little princess trembled slightly. Faced with the colossal steel object she was seeing for the first time, she felt not only awe but also an instinctive fear.

The Qin Dynasty, Xianyang Palace.

Ying Zheng suddenly stood up. The man who once looked down upon the world with such dominance now felt his legs go weak.

"This is the subway?" His once authoritative voice now betrayed a hint of fear. "Even the legendary dragon is probably no more than this!"

The Great Tang Dynasty, Taiji Hall.

Li Shimin's face was solemn as he held the little dragon tightly in his arms, as if the silver dragon might emerge from the sky at any moment and destroy the prosperous Tang Dynasty that he had built with his own hands.

"Father, I'm so scared..." Little Si buried his head tightly in Li Shimin's arms, his frail body trembling uncontrollably.

The Great Ming Dynasty, Fengtian Hall.

"Jing'er, be careful!" Zhu Yuanzhang exclaimed as if facing a formidable enemy, waving his sleeve, "Immediately summon the Imperial Guards to protect me!"

Empress Ma, who was standing to the side, also lost her composure. "Biao'er, quickly take your brothers and go to safety!"

Even among the civil and military officials in front of the palace, some rose up and fled in panic, plunging the entire palace into chaos.

The modern world.

"Don't be afraid, this is the subway, not some monster," Jiang Chuan quickly reassured him. "Just like a horse-drawn carriage, it's something created by humans, not a living thing."

Zhu Jingjing was dumbfounded. Could this really be created by human power?

When I saw it galloping towards me from afar, its speed was probably faster than even my father's fastest steed.

As the subway came to a complete stop, the doors and glass doors opened simultaneously.

"Let's go up," Jiang Chuan said.

Zhu Jingjing stood frozen in place, trembling as she asked, "Are we really going to go inside that monster's belly?"

Jiang Chuan couldn't help but smile wryly; it seemed the little princess was really quite frightened.

"Jingjing, don't worry. As long as I'm here, even if we encounter a real monster, I won't let it eat you!" Jiang Chuan was completely immersed in the role of the older brother at this moment.

Zhu Jingjing bit her lip, desperately suppressing her instinctive fear. "Really?"

Jiang Chuan nodded vigorously and said, "Of course, what can I do? I'm your brother!"

In an instant, Zhu Jingjing thought of her brothers, the emperors, who were far away in the Ming Dynasty.

Although her brothers, led by Zhu Biao, doted on her, there was always a subtle distance between them.

She had heard more than once that there was no kinship in the royal family, and perhaps only Jiang Chuan truly regarded her as a younger sister.

Zhu Jingjing lowered her head and hugged Jiang Chuan's arm even tighter. "Then can I call you Imperial Brother from now on?"

Jiang Chuan was taken aback and quickly shook his head. If someone heard this, wouldn't they think he was crazy?

"Didn't I say that there's no emperor now? You can just call me brother, no need for 'royal brother'?"

"Brother..." Zhu Jingjing called out tentatively, feeling a little awkward but not bad.

"Let's hurry up, otherwise the bus will be leaving soon and we'll have to wait for the next one," Jiang Chuan said.

Zhu Jingjing nodded and followed Jiang Chuan into the car. Seeing all sorts of new things inside, her curiosity quickly overcame her fear.

"Jingjing, we're traveling at 80 kilometers per hour right now!" Jiang Chuan pointed out the window and said, "It's a pity we're underground, so we can't see the scenery outside. I'll take you on a high-speed train sometime so you can experience how fast it is more directly."

"80 kilometers per hour?" Zhu Jingjing scratched her head, asking doubtfully, "Is it as fast as the legendary steed that can travel a thousand miles a day?"

Jiang Chuan said, "Let me think about it. It's equivalent to being able to travel 320 li per hour, so it would only take four hours to travel over 1,000 li."

Upon hearing this, Zhu Jingjing was stunned.

It only takes four hours to cover the distance that a legendary steed can run in a day. What kind of speed is that? It's three times faster than a steed!

She looked around, her surprise growing. Even if there were truly fine horses, they could only be ridden by one person, but this monster called the subway could easily hold a hundred people inside its "belly"!

Moreover, the journey was very smooth, which was much more comfortable than riding a horse. She would never have dared to imagine it before!

The Qin Dynasty, Xianyang Palace.

"What?! Four hours to cover a thousand li!" Ying Zheng's eyes widened in disbelief. "Even on my imperial highways, it would take a whole day and night to achieve that!"

After his anger subsided, Ying Zheng suddenly sighed and slumped back onto his dragon throne.

He could see that compared to the subway, his road was utterly insignificant.

Putting aside the speed difference, the comfort and convenience are far inferior.

While the imperial road is fast, horses also need to rest. To reach full speed, one needs to constantly change horses. How can it compare to a steel monster that does not need to rest?

Xuchang during the Three Kingdoms period.

"Summon Zihe to see me immediately!" Cao Cao said solemnly, summoning Cao Chun, who commanded the Tiger and Leopard Cavalry, to an audience.

"Zihe, let me ask you, how far can the Tiger and Leopard Cavalry travel in a day and night?" Cao Cao asked.

"If they march at full speed without eating or drinking, they can travel approximately three hundred li!"

Upon hearing Cao Chun's reply, Cao Cao's face grew even more gloomy. His Tiger and Leopard Cavalry was arguably the most elite light cavalry in the late Han Dynasty, known for its long-distance raids, but it paled in comparison to the Iron Cavalry.

"If we had this, why would we worry about the stability of the world?" Cao Cao couldn't help but sigh.

If he could control the subway, his hundreds of thousands of troops would have a marching speed far exceeding that of the Tiger and Leopard Cavalry, and who could possibly stand against them?

The Great Ming Dynasty, Fengtian Hall.

"What are you bunch of useless trash doing standing here? Get out of here!" The Imperial Guards, who had just been summoned, were now being thoroughly berated by Zhu Yuanzhang.

For a founding emperor who had fought countless battles to be so frightened by a so-called subway that he had to summon the Imperial Guard to protect him was undoubtedly a great disgrace.

Empress Ma hurriedly said, "Chongba, the generals and guards have rendered meritorious service in protecting me and should be rewarded. Why take your anger out on them?"

Zhu Yuanzhang nodded and sighed softly, "I'm starting to envy Jing'er more and more!"