The fall of Ichi no Tani castle. Kumagai attacks Atsumori (Ichi no Tani rakujō. Kumagai utsu Atsumori, 一ノ谷落城熊谷討敦盛).

The triptych depicts the dramatic encounter between Taira no Atsumori and Kumagai Naozane during the Battle of Ichi-no-Tani.
Fleeing toward the sea after the defeat of the Taira forces, Atsumori is pursued by Kumagai and initially turns back to fight, briefly gaining the upper hand. Eventually overpowered and thrown to the ground, Atsumori is unhelmeted, revealing himself to be a very young boy—about the same age as Kumagais own son. Struck by this realization, Kumagai hesitates, wishing to spare the youth`s life. However, as fellow Genji soldiers approach the scene, he understands that Atsumori would inevitably be captured and killed. Overcome by anguish, Kumagai takes the young warrior`s life himself.
Tormented by remorse, he later renounces the warrior`s path and becomes a Buddhist monk.