The Danxian Realm lost the hundred-year war with the Yinwu Realm and was invaded by the enemy into the Two Realms Mountains. The other party's condition for retreating was that their own prince taught the Great Void Technique. Sangjia, the general of Yinwu Realm, controls the government and urges Du Ruo, the prince of Danxian Realm, to come and teach him impossible thaumaturgy. After Du Ruo came to Yinwu Realm, he gradually changed his understanding of war, and developed inappropriate emotions for Sangjia. Who knew that all this was a conspiracy. The war between the two realms breaks out again, where will they go?