After he finished speaking, he even demonstrated it for Bai Cheng'an to see.
Bai Cheng'an, holding Qian Sisi, casually glanced at Erhu, "This is my family's private elevator, it only stops at my place."
Erhu's mouth gaped wide enough to swallow a whole raw egg, "There are elevators like this?"
His curiosity intensified, like a little science oddball, he fixated on the few buttons in the elevator, scrutinizing them back and forth without pressing them indiscriminately; instead, he stared intently as if merely by looking, he could understand the principle behind it.
Arriving at the door, Bai Cheng'an pressed his fingerprint to unlock it, and Erhu was even more astonished, "Brother Bai, your house doesn't need a key?"
Bai Cheng'an shrugged, "No need!"
Erhu was astounded, standing at the door studying the fingerprint lock until Bai Cheng'an called him several times before he reluctantly entered.
