Introduction to the pornographic novel "Invasion" - The crowds of people are surging at the entrance of F University in S City, and the newly enrolled students stretched their necks and looked around with confusion and expectation, looking for their majors.A group of people in the crowd were very conspicuous. They were a group of student union members with armbands. They held various signs and small flags to greet the overwhelmed freshmen. The most eye-catching one was the leading girl.