The message disappeared.
THE DOOR OPENS
Gone.
As if it had never existed.
But nobody in the room moved.
Not the girls.
Not the Overseer.
Because they had all seen it.
And they all understood the same thing.
Someone had just bypassed the system.
🔹 AN IMPOSSIBLE THING
The Overseer immediately walked to the nearest screen.
Her fingers moved across it rapidly.
Checking logs.
Checking permissions.
Checking system activity.
Nothing.
Absolutely nothing.
She stepped back slowly.
"...Impossible."
Lin Xia looked at her.
"...What?"
The Overseer's voice was lower than usual.
"...There is no record."
Silence.
"...No message."
"...No sender."
"...No system activity."
Mei Chen folded her arms.
"...So basically a ghost."
The Overseer didn't laugh.
Which was unusual.
"...Maybe."
🔹 THE LEGEND
The classroom suddenly felt smaller.
Yue Ning stared at the notebook.
At the XO symbol.
"...Tell us everything."
The Overseer looked at her.
"...Everything about who?"
"...The player."
Silence.
Then the Overseer sighed.
"...Most of it is probably rumor."
A pause.
"...But rumors survive for a reason."
🔹 YEARS AGO
"...Before any of you arrived..."
"...There was a player."
The girls listened carefully.
"...Nobody remembers their real name."
"...Nobody knows if they were male or female."
"...Nobody knows how long they survived."
A pause.
"...Only what they did."
🔹 THE IMPOSSIBLE RUN
The Overseer's eyes darkened.
"...They climbed faster than anyone."
"...Beat players who shouldn't have been beat."
"...Found restricted areas."
"...Discovered hidden files."
"...And somehow learned things the system never intended anyone to know."
Mei Chen frowned.
"...And then?"
The Overseer looked away.
"...They vanished."
🔹 THE STRANGE PART
"...But after they disappeared..."
"...Messages started appearing."
Silence.
"...Warnings."
"...Hints."
"...Fragments of information."
Yue Ning's heart raced.
"...Like the one we received?"
The Overseer nodded.
"...Exactly like that."
🔹 A PATTERN
Lin Xia immediately noticed something.
"...Wait."
Everyone looked at her.
"...If they disappeared years ago..."
"...Why are the messages increasing now?"
Nobody answered.
Because it was the right question.
🔹 THE SYSTEM REACTS
Suddenly—
every light in the classroom flickered.
Once.
Twice.
Three times.
Then stopped.
The girls exchanged glances.
Something felt wrong.
Very wrong.
🔹 THE HALLWAY
When they stepped outside—
the corridor looked normal.
At first.
Then Yue Ning noticed it.
"...Do you see that?"
Far down the hallway—
a door stood slightly open.
Nobody remembered it being there.
🔹 THE DOOR
It wasn't the black XO door.
This one looked ordinary.
A classroom door.
Plain white paint.
Normal handle.
Normal everything.
And somehow—
that made it worse.
Because every classroom on this floor was mapped.
Known.
Documented.
This one wasn't.
🔹 INVESTIGATION
The girls approached carefully.
The Overseer immediately became tense.
"...Don't."
Lin Xia stopped.
"...Why?"
"...Because that room doesn't exist."
Silence.
"...What?"
The Overseer stared at the door.
"...I've never seen it before."
That statement hit hard.
Because Overseers knew every part of the Upper Floor.
Or were supposed to.
🔹 INSIDE
The door creaked open.
The room beyond was dark.
Dusty.
Old.
Like it hadn't been used in years.
Rows of desks filled the classroom.
Empty.
Silent.
Abandoned.
🔹 THE DESK
Yue Ning stepped forward.
Something sat on one of the desks.
A notebook.
Nothing else.
Just a notebook.
Waiting.
🔹 THE MESSAGE
Lin Xia opened it carefully.
The first page contained only one sentence.
Written by hand.
Not digital.
Not generated.
Handwritten.
IF YOU FOUND THIS, THE SYSTEM IS ALREADY WATCHING YOU.
Nobody spoke.
🔹 SECOND PAGE
Yue Ning turned the page.
More writing.
Messier.
Rushed.
Like someone wrote it while being chased.
DO NOT TRUST RANKINGS.
DO NOT TRUST THE FLOORS.
DO NOT TRUST THE OVERSEERS.
The room became silent.
The Overseer stared at the page.
"...I've never seen this."
And for once—
everyone believed her.
🔹 THIRD PAGE
Mei Chen turned another page.
This time there was a drawing.
A rough sketch.
A large circular door.
Black.
Covered in symbols.
The XO Door.
🔹 THE DETAIL
But something was different.
Something important.
There were six locks drawn around the edge.
Not one.
Six.
Lin Xia immediately noticed.
"...The door is sealed."
Yue Ning nodded slowly.
"...And somebody was trying to open it."
🔹 FINAL PAGE
The final page contained only one line.
A line written much darker than the others.
Pressed so hard into the paper that it nearly tore through.
XO IS NOT THE FINAL BOSS.
Silence.
Nobody breathed.
Nobody moved.
Because that sentence changed everything.
🔹 FINAL LINE
Suddenly—
the classroom lights shut off.
Every screen on the floor activated simultaneously.
And a single system alert appeared.
UNAUTHORIZED ROOM DETECTED
A pause.
Then:
PURGE PROTOCOL INITIATED
The notebook began to glow.
And somewhere in the darkness—
something started moving.