C522 Looking for biological parents

At noon, the staff had all left work, but Tang Yalan was still looking around. After work, the staff would all be locked up, if they lost something, no one would be able to take responsibility for it.

"Sorry, we're off duty. You have to go." The staff member said.

"Can I keep searching here?"

"No, there's a rule in the hospital that we have to lock the door after work