To this day, Associate Professor Li is still somewhat puzzled.Why has the Immortal Cultivation Realm changed so much in just a hundred years?Looking at the new Sword Sect elective textbook on the table, Li became more silent.[Chapter 1, Introduction to Sword Control Theory][Chapter 2, Maintenance and Care of Qinghe Series Thousand Machines Cruiser][Chapter 3, Postpartum Care of Sword-Toothed Beasts]......Closing the textbook, Li gave up thinking.But just as he was gathering his teaching materials to go to class, a brick-thick book was thrown in through the window.'You Let Me Enter the Sword Sect'Looking at this broken book, Associate Professor Li Guanqi recalled the afternoon he brought Zhang Ze into the Sword Sect.