The situation is not that complicated.
Professor Lisa was surprised because she didn't sense Su Gao, simply because the latter deliberately concealed her presence.
In the Academy, this academic holy land, although there was an unusual incident earlier, just walking at night, Su Gao probably wouldn't be so cautious.
In fact, she wasn't that tense.
As someone who has fought alongside her many times, Fu Qian knew very well that the way she acted was only to hint to him that someone was following her.
As for who it was, when he opened the door to confirm, Fu Qian almost had a guess.
Being followed with malicious intent certainly isn't impossible.
Don't forget, not too long ago, he had accompanied this courageous woman into the ark; not only did a Second Phase person die there, but there were also considerable ties with the Native Council.
