Twelve-year-old Koichi, who has been separated from his brother Ryunosuke due to his parents' divorce, hears a rumor that the new bullet trains will precipitate a wish-granting miracle when they pass each other at top speed.

Akira is widowed and left with a pre-teen stepson. Travelling with him to her late husband's hometown, she meets her odd father-in-law and yet decides to make a go of living and working there. She attends training and joins the railway company where her father-in-law works and her late man dreamt of ending up as a child.