Flex Rail Ticket, The Tokaido Shinkansen round trip deal between Tokyo, Shin-Yokohama, Nagoya, Kyoto and Shin-Osaka for all of you

Flex Rail Ticket is the Shinkansen deal for the travel among Tokyo, Shin-Yokohama, Mishima, Odawara, Nagoya, Kyoto and Shin-Osaka. It is available for not only the tourist but also the resident. Please find the detailed information about this deal in this post.