Okuzono Akira suddenly loses her husband. She goes to her late husband’s hometown of Kagoshima with her 9-year-old step son Shunya. There, she meets her father-in-law Setsuo. The three of them begin to live together. Akira looks for a job. She decides to become a railway driver which is what her father-in-law does for a living and what her late husband dreamed of becoming when he was a child.