The First Undercover Agent in History

(Reminder: This is not a prehistoric fanfiction in the traditional sense. It contains mostly personal fantasy elements, with well-known characters interacting in the middle and later stages.) "Some people say that my destiny is 'One general will make thousands of bones dry up'..." Su Ze never imagined that after traveling through the wilderness, he would actually be working as an undercover agent! Are you kidding me, what will happen to the second and fifth generation! But if you don't go undercover, you'll die! Helpless, Su Ze lurked among the Lich and Lich clans, growing up silently, waiting for the opportunity to turn over. Three years... Three years later and three years later... Three years later and three years later... Countless three years later, Su Ze is still an undercover agent. "Gan! I won't turn over, young master. Why don't I be the number one undercover agent in the world?"