Seinen manga series
 is a seinen manga series by Jun Hayase, serialized in "Manga Action". It focuses on the main character, Nakahara Daisuke, as he eats "ekiben", bento meals sold at train stations, as he travels around Japan by rail. 
A 12-episode live-action television series adaptation aired between April 5 and June 21, 2012.
Plot.
Nakahara Daisuke is the owner of a bento shop in Tokyo and a "densha otaku". For their tenth wedding anniversary, his wife gives him a train ticket for traveling across Japan since he has not had a chance to travel since their honeymoon. She tells him to investigate "ekiben" recipes along the way to help improve the bento in their shop. Although the trip is intended to be a solo one, Daisuke often befriends other travellers along the way and shares information about trains, railway history, "ekiben", "meibutsu", and local landmarks. 
At each stop Daisuke or one of his fellow travellers buys an eki-bento (ekiben), and one full page is devoted to an image of the just-opened container with all components labelled; subsequent frames highlight the history and flavors. A related theme is the "romance of train travel".
Major characters.
In order of appearance:
Volumes.
Each volume of the manga focuses on a different region of Japan as Daisuke travels from station to station, viewing the local sights and eating "tokusanhin" in famous "ekiben".
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Ekiben competition.
In 2011 Hanshin department store in Osaka partnered with Ekiben Hitoritabi to hold an ekiben competition in which 260 ekiben were rated to name the country's best.
References.
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