"Building Seven, over there."
Tong Dan raised her hand and pointed.
Following the address, Fang Qing led Tong Dan to the door of Apartment 604 in Building Seven.
The hallway was in complete disarray, with shoe racks and trash piled outside, and the floor hadn't been cleaned for a long time.
Tong Dan couldn't help but frown.
Fang Qing, acting as though she hadn't noticed, raised her hand and knocked on the door.
"Knock knock knock..."
No one responded.
"Is anybody there?"
Tong Dan stepped forward and also knocked on the door but was met with the same silence.
"Give them a call."
She turned her head to look at Fang Qing.
"I've called many times, but no one answers."
Tong Dan was startled and asked, puzzled, "Then why did you come here?"
Before Fang Qing could explain, the door of the neighboring apartment suddenly opened, and a young woman emerged.
"Hello, do you know where Guan Libing, who lives here, might be?"
Fang Qing asked in a friendly manner.