The cold immortal is not cold

What did I cross?Why are there two more traveling with me?Three modern people simultaneously traveled through a fanfiction book that is being adapted into a TV series and is about to start filming. How can they return to reality?Li Yao fell into deep thought. He had never read the book, and he didn't understand the plot behind it at all.I asked the two people who crossed with him - one is the two who are squatting at home for the exam...