A week passed in the blink of an eye.
Liu Yingying carried a thermos box containing homemade meals and arrived at a biological research center located in the south suburb of Mande City.
Here, there were guards every ten steps and sentries every five, with extremely strict security, with hidden posts and patrol squads with police dogs visible everywhere.
There was also comprehensive monitoring with no blind spots, requiring multiple rigorous inspections to enter and exit.
Liu Yingying arrived at the central test building and pressed the elevator button.
The elevator did not go up; instead, it began descending.
When the elevator doors reopened, Liu Yingying had already reached a place over a hundred meters underground.
This area was transformed into a large research center, with pristine walls, numerous sophisticated instruments, and researchers in white lab coats bustling around, all indicating the uniqueness of this place.