In the sumptuous interior of folding screens and lacquer furniture, the Shogun (military ruler) Tsunayoshi is shown in the centre panel fast asleep. He is dreaming of his favourite concubine, Oyanagi no okata who is shown superimposed over the scene and filling the right panel. Behind him in the left panel his wife Osame holds a dagger. The Shogun is unaware that his concubine's father Yanagisawa, the Lord of Dewa, has been plotting to overthrow him. But his wife has discovered the plot, and is courageously planning to kill the concubine's father and then kill herself in order to save the Nation and her husband.