Saotome Mondosuke is Hatamoto (a high-class soldier who is allowed to see the General in person) who has a crescent-moon-shaped scar on his forehead with flashy clothes and a handsome face, and is proficient in all the military arts and called Hatamoto lazy man. Mikijiro Hira acts as such a hero in history. Mondosuke is secretly ordered to look into the suspicious movement in Nagoya castle by the Oometsuke, and he found out about the misconduct and sole it. This is a period movie about the hero.