After her mother is suddenly hospitalized because she has terminal cancer Sakiko returns to her home town Tokushima at the foot of Mt. Bizan. The relationship between mother and daughter isn't good but still she nurses her mother at her sickbed. She always thought her mother was a cold person until her mother gives her a box full of love letters from her father who she never knew and she starts to understand her mother better. Her mothers last wish is to see the Awa Odori festival for the last time before she dies.