The rebellious young hero Youfang, Cai Wei, who sneaked into the Imperial Preceptor's military camp in order to rescue and investigate the disappearance of a virgin girl, accidentally exposed his background as a descendant of the Demon Race. He also attracted the dual pursuit of the Imperial Preceptor Xuanzhen and the new Demon Race King Deye because of the demonic power of the Yellow Banner Star sealed in his body. Fortunately, Zhuge Shifang, the master of the traveling party, came to the rescue and guided the traveling party and Caiwei to Shenpo Temple to seek answers from their old friend, Master Wuchen, to solve the problem. On the way to escape, Wanfang was forced to join forces with his twin brother Ogino to fight against the ruthless killers Oshura and Momaru sent by Xuanzhen. In the end, brotherhood defeated the demon...