Sodzu Gyokei, a priest serving at the temple of the royal court, is praying for Tsunemasa, who died in the battle of the Western Seas. Tsunemasa was a favourite of the Emperor, who had given him a lute named Seizan (Blue Mountain). Gyokei now offers the instrument at the altar of the deceased, performing a service for the salvation of his soul. While the prayers and music for Tsunemasa to become a Buddha resonate, the faint shadow of a man appears. Gyokei asks who it is, and the shadow replies that he is the ghost of Tsunemasa, lured there by the sound of the prayers. Then the shadow vanishes and only the sound of his voice remains, telling the priest how it misses the old days. This happy moment, however, is short-lived. Tsunemasa’s ghost is tormented by visions of the battle in which he fought. He wants the lights to be extinguished and disappears.
One spring morning, as the fisherman Hakuryo sets out to go fishing with his companions, he finds a beautiful feather robe hanging on a pine branch. When he plans to take it home, a Tennin (angel) appears and asks him to return the robe to her. At first Hakuryo refuses. But he is moved by the angel’s lament that she cannot go back to heaven without it. He will give her the robe in return for seeing her perform a celestial dance. When the fisherman again expresses distrust, she responds: «Doubt is for mortals; with us there is no deceit». The Tennin dances in the feather robe; one of the dances represents the waxing and waning of the moon. Eventually she disappears in the haze beyond the peak of Mount Fuji.