There are no surveillance cameras in the fire stairwell...

"But he didn't see Yueyue at all when he went down the stairs just now..."

So, where did Yue Yue go

Li Sen could only invade the first floor's surveillance and found that, at that time, Yue Yue was also not present on the first floor....

The rooftop also didn't have...

Li Sen became increasingly anxious as he investigated further. Some areas of the hospital were blind spots for surveillance. With Yueyue's abilities, if she was determined to leave and avoid all monitoring, it wasn't impossible....Bai He doctor, fearing it would expose her identity.Li Sen was a little surprised. This Li team saw his sister, how could he be more excited than seeing him!"Doctor Bai, are you out playing today" He...