I started by watching videos, and I chose 10,000 combat power.

The First Emperor took the pistol.

Luo Fei slowly walked to his side, supported his wrist, and patiently adjusted his gun-holding posture, while explaining in detail the pistol's safety device, aiming techniques, and trigger-pulling skills.

Every detail was explained clearly.

After the First Emperor had grasped the basics, Luo Fei released his grip, stepped back, and carefully observed the emperor's posture while holding the gun. He then slowly said, "Your Majesty, this pistol has an effective range of over twenty zhang. Within this range, it can easily kill any enemy. If an assassin tries to get close, beyond seven paces, the gun is faster than a knife; within seven paces, the gun is both fast and accurate."

The First Emperor straightened his arm as instructed, slightly lowered his wrist to lock the force, and steadily pointed the gun forward, his eyes focused intently on the crosshair and rear sight.

Although his posture wasn't perfect and was a bit awkward, it was enough to ensure he wouldn't accidentally hurt himself.

Seeing this, Luo Fei turned around and walked outside the hall. He found a wooden board about an inch thick in a corner of the courtyard, brought it back into the hall, and placed it on the wall.

He then stood next to the First Emperor again and said softly, "Your Majesty, aim at that wooden plank and fire."

The First Emperor took a deep breath, slowly slipped his finger inside the trigger guard, and gently placed it on the trigger.

Following Luo Fei's instructions, he released the safety lock and began to slowly press down with his fingers.

The trigger has surprisingly light resistance and a very short travel.

The moment the finger was fully depressed, a muffled "poof" sound came. The sound was not loud and was effectively suppressed by the muffler, making it sound like someone sneezed in the distance.

The bullet whistled out of the gun barrel and struck the wooden plank precisely.

A small hole appeared instantly in the wooden board, its edges charred black and emitting a faint wisp of smoke.

Throughout the entire process, the First Emperor's hand did not tremble at all, and the muzzle of the gun did not bounce due to the recoil.

Luo Fei had just told him not to panic when the gun went off, to keep his hand steady and his eyes sharp.

His gaze was fixed on the wooden plank, staring at the small, smoking hole. His mouth was slightly agape, and his eyes were filled with shock and disbelief.

The First Emperor first looked at the gun in his hand, then turned to look at the wooden board, repeating this several times as if to confirm whether it was real.

Immediately afterwards, he pulled the trigger repeatedly, and the sounds of "thud, thud, thud" rang out one after another.

The holes in the wooden board went from one to three, then from three to five, each with charred and smoking edges, clearly demonstrating the weapon's formidable power.

A moment later, the First Emperor put down the gun, took a deep breath, and gently placed the gun on the table in front of him.

His hands remained steady, his face did not flush with excitement, and his breathing was equally steady and normal, but his eyes gleamed with an unusual light.

"Good gun."

Although he only said those two words, the shock and admiration they conveyed were self-evident.

Luo Fei pointed to the two magazines and the box of bullets on the table and continued, "These two are spare magazines, both fully loaded. This box of bullets contains fifty rounds. Your Majesty must remember that this gun must never be shown to anyone lightly. This thing is for saving lives, not for showing off. It should not be used lightly unless absolutely necessary in a critical situation."

The First Emperor nodded solemnly and carefully put the gun and magazine into a hidden compartment under the table.

The hidden compartment had a lid, and a bamboo mat was laid on top of the lid. From the outside, there was no clue whatsoever, perfectly concealing this weapon.

Luo Fei stood up and walked towards the entrance of the main hall.

The First Emperor followed closely behind, and Fusu and Li Si also caught up with great curiosity and awe.

The four of them arrived together in front of a side hall.

This side hall was emptied a few days ago. All the items that Luo Fei had taken out of the ring and stored inside have been moved out, and the floor has been cleaned up.

Two guards stood at the entrance of the side hall. When they saw the First Emperor and his entourage approaching, they immediately stood at attention, bowed their heads respectfully, and then turned around and pushed open the heavy hall door.

Luo Fei was the first to walk in and stood in the very center of the main hall.

With a thought, he began taking things out of his storage ring.

In an instant, all sorts of boxes poured out of the ring, stacking neatly on the ground. A regiment's various weapons and equipment piled up box after box, quickly filling the entire side hall, leaving only a narrow passage.

The First Emperor, Fusu, and Li Si stood at the door, dumbfounded as they watched the boxes pile up higher and higher, more and more numerous, their shock beyond measure.

Finally, Luo Fei took out a small white cardboard box with the words "Weapon User Manual" printed on it.

He opened the cardboard box, inside were stacks of booklets.

These booklets are all printed in color, each with dozens of pages, and are richly illustrated and easy to understand.

Luo Fei carried the cardboard box to the door and said to the First Emperor, "Your Majesty, this contains various weapons and equipment from armies more than two thousand years in the future. These are their user manuals; each weapon has detailed instructions. You should be able to learn how to operate them by following the diagrams."

The First Emperor took out a booklet from the box. He didn't recognize the characters on it, but he looked at the pictures in the booklet.

He then put the booklet back in the box.

He slowly walked into the side hall, reached out, and gently stroked a wooden box painted green in front of him.

The box is made of wood, with a smooth and even green paint finish on the outside, and a white serial number printed on the paint surface.

His hand lingered on the box for a moment, sensing this creation from the future, before slowly withdrawing it, turning around, and facing Luo Fei with a firm gaze.

"Grand Preceptor, I will arrange for Li Si to personally translate the user manuals for these weapons as soon as possible."

The First Emperor spoke solemnly.

Luo Fei looked at the First Emperor with a serious expression, and after a moment spoke in a deep voice: "Your Majesty, these weapons are extremely powerful, and you must be extremely careful when using them. Never let anyone you don't trust come into contact with them, and never let them fall into the wrong hands."

"Although His Majesty's body is much stronger than before, it still cannot withstand the power of a single bullet. A small pistol bullet is enough to take His Majesty's life."

His voice wasn't loud, but his tone was unusually heavy and full of warning.

The First Emperor nodded solemnly once again.

"Rest assured, Imperial Advisor. I will strengthen the defenses, with guards on duty day and night, ensuring that not even a fly gets in. Not a single one of these weapons will be left out."

He then turned around, his sharp gaze sweeping over Fusu and Li Si, and said sternly, "What happened today must not be told to anyone. Anyone who dares to utter a single word will have their entire family wiped out!"

Fusu quickly bowed and clasped his hands in a respectful gesture, replying, "Yes, sir."

Li Si also bowed and clasped his hands, replying in a deep voice, "Yes."

All three looked extremely solemn, fully aware of the importance and confidentiality of what they had witnessed that day.