He lowered his head and looked at the glass cylinder, which was called a battery, on his left shoulder. "The stuff inside the cylinder should be some kind of energy liquid that can charge this suit and allow it to alleviate my shock symptoms.

Or it could be some kind of medicine at the same time, part of which is directly injected into my body to relieve the shock."

Li Ang thought for a moment, then reached out and tried to pry the glass cylinder. "It's fixed on there. I can't pull it off by either pulling or rotating it. Forcibly prying it could directly shatter the glass cylinder.

This thing is a battery, so it's best not to be a busybody.

I'll have to be careful not to damage it when I'm moving around later."

He stepped over to the metal door, reached out, and twisted the L-shaped doorknob, but it wouldn't budge at all.

He raised his leg and gently kicked the door, and the muffled sound was enough to prove that this door could not be broken through by human force.

"So thick? Is this a vault door?"

Li Ang crouched down and looked at the lock cylinder below the doorknob, and immediately chose to give up.

"Multi-track lock cylinder. Even with all the tools, it would take at least two hours to open, let alone the fact that I don't even have a thin wire now."

Okay, as expected.

If this door could be opened so easily, it would be a bit of a letdown for the bizarre situation in the room.

Li Ang sighed, moved closer to the metal door, and found that his reflection on the metal door was very blurry.

"Is it because it's a special metal, so I can't see the reflection?"

Li Ang pondered for a moment, then turned and walked to the sink, reaching out to twist the faucet, but there was no response.

"I can't see my reflection in the ceramic sink, the tiled floor, the metal spring bed, or the window.

Either I'm a ghost,

or every corner of this room has been specially designed so that you can't see reflections."

Li Ang said to himself,

"Now there are four possibilities.

First, the body I am currently using is my body that has been modified by the biological motherboard, but the enhanced attributes have been stripped away.

Second, it's my own normal teenage body.

Third, it's the body of the character I'm playing.

Fourth, it's my body, but in the eyes of this 'world,' it's the character I'm playing."

Li Ang reached out and touched his left chest. "I don't feel the second heart or the second lung, which means the first possibility is ruled out."

He raised his hand again and touched his head through the bulky gloves.

"Well, the helmet I'm wearing perfectly covers my entire head, only exposing my eyes and mouth.

Its material is some kind of metal, which is quite strong.

I definitely can't open it with my current strength.

There is a keyhole where the front of the helmet intersects with the breastplate.

The style is the same as the keyhole at the neck and chest, so it may need to be opened with the same lock.

It's different from the door lock."

Li Ang casually knocked on the helmet, listening to the muffled sound in his ears.

He walked to the wall, stood up straight with his chest out and abdomen in, and at the same time stretched out his palm and pressed it against the wall above his head.

He measured his height.

"I'm about one meter eighty with shoes on, which is about the same height as my body in the real world.

The voice I hear when I talk to myself is also the same as my accent in the real world."

Li Ang frowned slightly, gathered his Qi in his dantian, bent his legs slightly, and made a "hmm--" exhalation sound from his throat.

Three seconds later, he calmly stood up straight and said, "There's a sense of congestion. I'm male.

My fingers and toes are all there.

The urge to excrete isn't strong—I specifically went to the bathroom before starting the mission.

If I felt the urge to poop in my stomach now, it would prove that this isn't my body."

The attempts all failed one by one.

Li Ang was not discouraged. He raised his hand, covered his mouth, and breathed out.

Then he squinted his eyes and carefully scraped his teeth all around with his tongue.

"A total of thirty-two teeth. The teeth are growing in the same way as mine. There's a faint mint taste in my mouth,"

Li Ang raised an eyebrow, pursed his parched lips, spat a mouthful of saliva on the tiled floor,

and then very boldly stuck his finger into his throat and gagged violently for a while, spitting out some yellowish sour water.

"Bleeding gums. My stomach is empty, with no contents.

Then this should be the fourth possibility—in my opinion, this is my own body.

But in the eyes of this 'world,' I am still using someone else's body.

Unless this body is my alternate-dimensional counterpart, with the same dental contours as me."

Li Ang exhaled a breath of stale air, exhaling the sour taste in his mouth.

Everyone's dental contours are as unique as fingerprints, faces, and irises.

As an ordinary teenager with a wide range of interests,

Li Ang had long ago been able to draw his own fingerprint patterns and dental contours by hand,

and made himself fake fingerprints, dentures, fake faces, blood bags, and contact lenses to cover his irises,

to prevent exposure of personal identity information during field trips and disposal of corpses.

"Tsk, it would be great if I could spit something out. I could judge what the owner of the body ate for his last meal based on the type of contents he spat out, and then guess his class, economic situation, and current identity."

Li Ang sucked his teeth regretfully, turned around, and looked at the inside of the room, starting a carpet-like step-by-step exploration, looking for the room key.

First is the wall.

Li Ang walked to the bed, tore off the entire wallpaper along a corner of the printed wallpaper, revealing the cyan-black brick wall underneath.

Thick, sturdy, seamless, impossible to break through with brute force, and there are no loose hidden bricks.

The spring bed, mattress, bed sheets, wooden chairs, faucets and other items are extremely ordinary, with no brand labels on them.

He even lay on the ground and reached out to buckle the plastic pipe below the faucet that was missing the U-shaped pipe, but still got nothing.

"So, God closes a door for you, but he also opens a window for you..."

Li Ang walked to the innermost part of the room, stood on tiptoe, picked up the latch, and opened the casement window.

Behind the casement window, there is still a brick wall.

"...So what's the point of this window? Is it purely for decoration?"

Li Ang twitched the corner of his eye and complained, "Or is this a basement rental in a big city? You have to open a window in the wall so that the people who live there feel like they are living in a high-rise building and relax?

Is the housing price in another world so terrible?"

He knocked hard on the window to confirm that there was no interlayer inside the glass window and that it could not be broken.

"So strong, is it bulletproof glass?"

Li Ang put down his heel, frowned slightly, and looked at the only place in the room that hadn't been explored.

That tall metal cabinet.

From a visual point of view, the cabinet with Baroque-style relief is undoubtedly the most exotic thing.

It is about two meters high.

The entire cabinet seems to be fixed in the corner of the wall. It is very heavy, and no matter how hard Li Ang pulls it, it will not move.

You can only vaguely see a line extending from the lower end of its back into the wall.

A metal pipe extends from the middle end, sticking to the wall and extending into the ceiling.

"The front design is similar to a beverage machine in a cafeteria.

Three inverted cones are suspended in the air, and their tips are hollow.

The size of the hollow circular hole..."

Li Ang recalled carefully, widened his eyes, "is consistent with the metal protrusion of that battery.

The height from the drain plate to the cone also matches the battery perfectly."

In other words, this machine is likely to be used with the battery, and it functions to inject liquid into the battery.

Li Ang checked the bottom of the drain plate and didn't see any residual liquid. He studied the metal cabinet for a while, but didn't find any screws that could be unscrewed.

So he twisted the rocker on the left side of the machine, took a few steps back, hid behind the upright spring bed, and waited silently.

He saw the metal cabinet shake violently for a while, and then immediately stopped moving,

without dripping any liquid.

"Is it lacking raw materials, or does it have to be inserted into the battery to take effect..."

Li Ang squinted his eyes and thought, his eyes inadvertently glanced at the top of the metal cabinet.

"Hmm, wait, that is...."

His eyes lit up, he moved a chair from in front of the sink, stepped on the chair surface, and reached out to take a letter from the top of the metal cabinet—just now the metal cabinet trembled in place, just shaking the letter placed on the top to the edge, revealing a corner.