In the original version of the Chushingura, Ko no Moronao pursues the wife of En'ya Hangan. The shogun orders Hangan, and Hangan's chief retainer, Yuranosuke, spends many months secretly plotting with his fellow warriors to get revenge on Moronao. Later versions feature characters from the Ako Incident, such as Asano, Kira, and Oishi Yoshio.