Qin You followed behind Su Junxin, somewhat puzzled: "Why would it be the cleaning staff?"
Su Junxin scanned her surroundings, headed straight for the nurse station, replying without turning her head: "The janitor in the hospital would be cleaning the wards with a large trash can at noon every day. The trash can is large enough to fit an adult male and janitors often move around in the hospital, they belong to a group of people who are rarely noticed. Even if someone saw them, they wouldn't be suspicious."
Qin You had a moment of realization, nodding in agreement, adding: "And they can also exit through the backdoor, which is even more secretive."
Su Junxin snapped her fingers, "Exactly."
While speaking, she had already reached the nurse station, addressing the on-duty nurse: "Hello, I'd like to ask who is the janitor in charge of this floor?"