This is someone else's place, and Yiran He must have felt it inconvenient to explain, which is why she did not offer an explanation. That's why Zhenzhen didn't press her further.
The person who had just guided them to a doorway left after showing them there. At the room's entrance, another worker stood guard. The invitation that had just granted them entry served only as an initial verification; once inside, it had another purpose—to verify their identities once again.
The worker at the entrance took Yiran He's invitation, scanned it at the machine in front of the computer, and with a 'beep,' Yiran He's information appeared on the computer screen, matching the person to the invitation. The invitation's purpose was thus exhausted.
Having received the invitation, the worker asked, "Miss He, did you bring these three with you?"
"Yes, I did."
The worker nodded, then continued, "Miss He, how many bracelets will you need?"