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.... this because he's afraid we’ll follow the lead of the film and television company and find them. Therefore, this person must have collaborated with the film and television company!”"Moreover, last ti...