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....!" Li Yuanfu and Song Qiao Ying were both surprised and delighted that their precious daughter would have guests at home.What does your friend like to eat and drink Mom will get it ready right away."...