Song Dynasty Territory? No, It's a World Map!

The class bell rang, and the history teacher slowly walked in. "Students, our class is about the development of science and technology in the Song Dynasty. Turn the book to..." When I turned the book to the designated page number, I looked at the portrait of Song Shenzong on the book. Suddenly, a golden light burst out from the illustration, and then my vision went dark, and I fell on the table and fainted. When I opened my eyes, what I saw was not a classroom, but a palace! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.