C1646 Invitation

Lin Feng shook his head, "No, Lev, I still have to prepare for my graduation exam." As he said this, he sat down at his desk. The table was very large, and there were books, retail sales, and all sorts of other things inside.

He took out the book in his pocket and prepared to see what the contents of the book were. "Basic Summoning Theory", "Simple Summoning Technique", "Other World's Book"