When Shiba Yoshikane--nominally Lord Protector of Owari but in fact merely a feckless ward--begins to stir up trouble, Nobunaga must act. But his actions carry repercussions, and Nobunaga receives a summons from the Shogun to explain himself.
That was exactly what people mean when
they say he "fights like a demon god." 
cuando decían
"pelea como un dios demoníaco".
quando dizem
“ele luta como um deus demoníaco”.