Daiki

I saw Dr. yellow! Dr. yellow is a kind of Shinkansen super express. Dr. yellow is running on Tokaido shinkansen line and  on Sanyo shinkansen line. Tokaido shinkansen line is the oldest shinkansen line in japan. a service area is between Tokyo station and ShinOsaka station. And sanyo shinkansen line is for ShinOsaka station to Hakata station. Both lines are very important public transportation for many seen. Tokaido shinkansen line serves shinkansens every 3 minutes and 30 seconds from both of Tokyo station and ShinOsaka station. And we do no need to change any trains from Tokaido shinkansen line to Sanyo shinkansen line. If we are living around one of Tokyo area, Osaka area or Hakata area, then shinkansen line is more convenient than air lines for moving between such three area. (If we can book super cheap air line tickets, then air line is more cheap than shinkansen line. Because shinkansen line has few discount tickets. And shinkansen line's discount rate is not so b...