Black spark

Dai Lin became a surgeon at a strange hospital.
Here, they don't treat diseases but various horrific and mysterious curses! Divided into the Resentful Spirit Department, Malicious Ghost Department, Evil Ghost Department, Fierce Spirit Department, and the enigmatic Demons Department...
The eerie hospital, however, had some bewildering rules:
First, believe that the hospital is called Hospital 444, not 666 Hospital.
Second, between midnight and four in the morning, doctors and nurses must never enter the outpatient area.
Third, if you experience a severe headache and notice an inverted cross on your forehead, immediately seek treatment at the hospital's Demons Department.
Fourth, all doctors in the hospital wear white masks. If you see a doctor with a red mask, ignore them and make sure they do not realize you can see them.
Fifth...
And Dai Lin obtained a magical artifact, a pair of the Devil's Eye —the left eye could detect, sense, and attack, while the right eye could imprison, seal, and even devour and absorb.
And the source of all the terror in this hospital was the director who had never been seen by anyone...

Hospital 444

Of course, no one would take notice of his presence because of it.


Everyone would just hear their own phone ringing.


"Open the curtains... Open the curtains…"


Dai Lin recalled what Hei Dongxie had mentioned… the seven rules stipulated by the apartment Blood Letter Task:


The first, never open the curtains for anyone, neither should you open the curtains in any other area of the apartment.


The second, do not leave the apartment you are in before midnight tonight.


The third, do not trust anyone's words within the apartment.


The fourth, be wary of those who tell you they dreamed about cats last night.


The fifth, if you see a black person eating humans, pretend you did not see anything.


The sixth, if someone cannot distinguish between black and red, flee from their side as fast as possible.


The seventh, do not try to discover what is outside the curtains using any means other than opening them due to curiosity.


Chapter 5: 7 Rules