Water Margin: Accept Song Jiang as Your Younger Brother at the Beginning

What should Lu Junyi do when he travels through time and is about to be caught by Song Jiang? Activate the system and gain peerless force! What should I do if I accidentally become the boss of Liangshan? What should I do if I accidentally destroy the Song Dynasty? Liao, Jin and Xixia. . . And even the Byzantine and Roman Empires further afield. Conquer. . . Conquer. . . Only through continuous conquest can the Han people never be troubled by foreign enemies! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.