At her husband's suggestion to "focus on self-improvement rather than dull housework," young married woman Nanako decides to become a disciple of floral artist Sakawa. Her goal isn't merely arranging flowers, but refining herself and preserving her beauty. However, Sakawa senses something deeper in her—she desires not just to arrange flowers, but to become a vessel that can be arranged herself. These words become the turning point that drastically changes Nanako's life.