Today in history, the Forty-Seven Rōnin, under the command of Ōishi Kuranosuke, avenged the death of their daimyō, Asano Naganori. Asano had been compelled to perform seppuku for assaulting a court official named Kira Yoshinaka.

After they lost their positions as samurai, the forty-seven made themselves appear to have lost all honor by posing as drunkards and thieves. After waiting and planning for a year, the rōnin avenged their master's honor by killing Kira. In turn, they were themselves obliged to commit seppuku for committing the crime of murder. 

Their story has been fictionalized several times, but always at the expense of the actual story.