"Knock, knock, knock..." A crisp and rhythmic knocking sound arose, but it was not a real knock, rather it was a mid-level feedback signal of a visitor alert.
Feng Xue opened the mid-level interface, checked the visitor's Identity, then adjusted her facial features in the mirror, used facial recognition to switch the mid-level interface to a superficial Identity, before she tidied up her clothes and walked towards the door.
At this time, she wasn't dressed in unrestrained fashion, but rather in a relatively durable woolen coat that didn't quite scream success but had an air of an old-time Detective.
The door opened to reveal a plainly dressed middle-aged man standing outside. Although he appeared quite calm, with the help of the Heart of Bright Mirror, Feng Xue could sense a hint of arrogance in his spirit.
"Welcome to the Black Thorn Ghost Hunting Agency. I am the president here, Dunn Simoni. Do you have an appointment?"