Lin Yi was startled, but it made sense.

Once a human turns into a zombie, they're no longer human. Getting rid of a zombie is eliminating a threat—getting rid of the sneering angel is the same principle.

What you get rid of depends on the opponent's current "identity."

Lin Yi vaguely remembered that supernatural material could energize a lamp wick, and the sneering angel's Yu Tong seemed to have a similar effect, but he wasn't sure how to operate it.

"Wei Sang, do you know how to light the lamp?" Lin Yi asked.

Wei Shan replied, "Old Lin, you should know these things better than I do. Or, maybe you could ask the boss during PE class later?"

"The boss?" Lin Yi's eyes lit up, "Oh right, I can ask her!"

"Alright, if there's nothing else, I'll be leaving now." Wei Shan finished speaking and was gone.

Lin Yi picked up the old kerosene lamp and turned to leave quietly.

However, before leaving, he thought for a moment and proceeded to crush the scattered and intact fragments of the sneering angel sculpture on the ground before leaving.

As he departed, the surrounding layers fluctuated, and the previously empty elevator car became stuffed with pseudo-human students and nocturnal species again.

Light and shadow twisted behind Lin Yi, the dark elevator shaft shrouded as if in a sandstorm.

Lin Yi walked out of the passage where the elevator was and glanced at his watch.

"14:16"

Over 40 minutes had passed since he left Director-040's office, most of which was spent disassembling the sneering angel.

After confirming the time, he turned and headed towards the bathroom.

This bathroom was his destination for this trip, and the other stairwells and elevators were merely incidental.

Today, there was no time to linger in the classroom. After a trip to the bathroom, he needed to call Wei Liang for PE class.

Given what happened last night, he planned to set off a bit earlier today, to have more time to observe the gymnasium's environment.

Meanwhile, at the bathroom, a few students were using the facilities; it seemed no one noticed Lin Yi approaching.

It wasn't until Lin Yi arrived at the bathroom that someone noticed him, was startled, and quickly left the bathroom.

It seemed there was an eerie aura about Lin Yi, making all the students using the bathroom uncomfortable. They hastily finished and exited quickly.

Lin Yi didn't pay much attention to these experience students, but until he crossed the bathroom threshold, he didn't realize why these students looked at him with such astonishment.

"Door attribute..." Lin Yi was taken aback; this bathroom had no door, yet in that crossing moment, he distinctly perceived the presence of a door attribute.

Before this, he hadn't sensed anything unusual about the bathroom!

"Why?"

"Is it because my cognition has deepened, so I'm now more constrained by the door attribute?"

The more you know, the more rules and boundaries you can ignore, but correspondingly, the more limitations you face.

Lin Yi felt as if he had touched a paradox of "the stronger you become, the weaker you get."

Yet, with his arrival, the other experience students in the bathroom were influenced by his aura, and their use of the facility became uneasy, urging them to quickly pull up their pants and leave.

Soon, only Lin Yi was left in the bathroom, along with a stall with its door tightly shut.

This stall, ever since he entered the bathroom, until now, kept flushing endlessly, akin to a stuck flush being pressed tightly.

Lin Yi gave the tightly closed door a nonchalant glance and unhurriedly walked to the urinal to relieve himself.

His back was to the stall, but he didn't need to look; his perception tendrils had already spread, covering the entire restroom.

Curiously, the door attribute was omnipresent; his perception could easily capture everything around, except for that tightly closed stall, which seemed omitted from his perception as if it was cut out.

When the stall door was closed, it seemed to achieve a self-enclosed layer structure, quite peculiarly separating itself from the bathroom.

Lin Yi didn't buy it, wiped his eyes, activated "Field of View Insight," and enhanced his perception tendrils to detect the mysteries of the bathroom.

This action was no less than scanning the restroom with the most advanced radar... but at S City University, a restroom may not be just a restroom, insight is necessary.

Lin Yi had a clear goal coming here because he felt that he had explored the entire Teaching Building, except he hadn't thoroughly studied... the restroom.

Yet, the restroom indeed wasn't ordinary; even with his field of view expanded, he still couldn't see through the mysteries of the layer here.

It wasn't that he couldn't see through—it's that, in his visual field, the area where the bathroom was located was... actually a void!

This entire bathroom wasn't like the elevator, or the Student Cafeteria, existing layer by layer; its lower level was simply a pure void.

This void was just like what he had seen before at the layer rift in the Corpse Bone Forest; beneath the interwoven layers lay that place where even light and shadow couldn't exist – a misty void.

Nature-wise, the layer below the bathroom... had reached that level.

"Does that mean if I fall off the layer here, I'll meet my end instantly?!" The thought suddenly popped into Lin Yi's mind.

With no results from his thorough investigation, Lin Yi focused his attention on the tightly closed stall door.

Inside the stall, the "whoosh whoosh" sound of water continued to emanate endlessly.

So, Lin Yi raised his hand and knocked on the door.

"Knock! Knock!"

"Anyone in there? The toilet needs fixing!" Lin Yi's first words were like an old plumber's, yet after calling a few times, there was no response except for the sound of water inside.

Lin Yi then slowly placed his hand on the door's lock.

The stall locks were invariably locked from the inside, and faced with such a lock, Lin Yi wasn't sure if he could force it open.

Of course, encountering someone squatting inside when the door opens would be quite the shocker.

Lin Yi, while softly greeting, activated his unlocking supernatural power.

And as his transcendent power seeped into the door, he gradually realized that breaking through the door attribute doesn't entail breaking the lock but using the physical door as an anchor, using it to tear open the gap between layers.

"What we call a 'door' is actually just a node! Like a staple pinning two sheets of paper together, precisely because of the door's existence, the paths between layers can be manifested!"

Lin Yi's insight was activated, and his transcendent power quickly flowed over the entire door, and in reality, the more he perceived this door, the more he felt he was observing some "infinitely" vast city walls.

That was the boundary of the layer behind the door!

"No need to be so excessive... I just need to open a hole! Just a hole!"

Lin Yi analyzed the door, and on the layer level, countless creepy, wriggling worms appeared, those worms resembled countless maggots, yet also seemed like countless mouths biting on each other.

Through Lin Yi's relentless effort, those maggots finally wriggled apart...

"Click, click, click..."

In Lin Yi's mind, the sound of a latch revolving and moving echoed.

There was never a latch on the stall door.

This was the sound of the door attribute being activated between layers.

As it turned out, Lin Yi had captured such a sound earlier on the night of enrollment.

As the door attribute broke open on the layer level, the red "Occupied" on the door in the bathroom level also started turning, finally clicking and switching to the green "Vacant."

Lin Yi's spirit lifted, quickly pulling open this door.

Indeed, there was no one inside the stall, only the continual swirl of water.

But at the drain, there was a peculiar object that couldn't be flushed away.

The relic was barely recognizable, but Lin Yi's perception vividly reconstructed its appearance in his mind.

In that instant, Lin Yi's pupils contracted sharply.

"This, this is...?!"

This was the duckbill cap that had always been on Wei Liang's head.

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