"Blind domain" is not a place name, but a state.
It's the light at the end of the corridor after a power outage. It's the moment when the stethoscope can't tell whether it's a heartbeat or a sound of dripping water. It's the moment when you see yourself on the surveillance screen but can't remember when it was photographed.
This is an urban suspense unit drama: each volume is a forgotten public space (inpatient department, funeral car, school doctor's office, deserted island village, dilapidated science museum, room "444"...), Each volume is about a group of people who have traveled to the wrong time, and a kind of parasitic malice that feeds on "building + body + memory". The units completed the case independently of each other, but were sewn together by a hidden thread.
Concept: The combination of modern technology and magic, high IQ reasoning promotes the suspense process