12-year-old Koichi, who has been separated from his brother Ryunosuke due to his parents' divorce, begin to believe that the new bullet train service will create a miracle when the firt train pass each other at top speed.

Air and Ryunosuke two brothers because their parents divorced Tiangeyifang . Airlines of the sixth grade, her mother lived in Kagoshima her family , her mother was busy looking for work , grandfather runs a pastry shop , and grandmother is keen to learn hula . The small two-year-old Ryunosuke is followed by the father when the musicians living in Fukuoka Bode . The brothers have been trying to make parents and hope to a family of four can be reunited again .