The play is based on a historical event which took place in [[1723]]. A lady-in-waiting was so humiliated by a more senior lady-in-waiting that she committed suicide; Yamaji, a maidservant to the woman who killed herself, then avenged her mistress by killing the senior lady-in-waiting. | The play is based on a historical event which took place in [[1723]]. A lady-in-waiting was so humiliated by a more senior lady-in-waiting that she committed suicide; Yamaji, a maidservant to the woman who killed herself, then avenged her mistress by killing the senior lady-in-waiting. |