- Title: 一路
- Title (romaji): Ichiro
- Format: Renzoku
- Genre: Jidaigeki
- Episodes: 9
- Broadcast network: NHK BS Premium
- Broadcast period: 2015-Jul-31 to 2015-Sep-25
- Air time: Friday 20:00
Set during the Edo period.
Ichiro Onodera's father dies suddenly due to a fire at home. 19-year-old Ichiro Onodera comes home. His father was supposed to prepare Sankin-kotai and lead the lines of Sankin-kotai to Edo.
After his father's death, Ichiro Onodera leads the lines of Sankin-kotai and heads to Edo. During the journey, he faces various cases and schemes which targets his family.
- Nagayama Kento as Ichiro Onodera
- Watanabe Dai as Sakyonodaibu Makisaka
- Fujimoto Takahiro as Kanjyuro Sakuma
- Kajihara Zen as Sojyuro Onodera
- Oshinari Shugo as Shinza
- Musashi (武蔵) as Chota
- Uchiyama Shinji as Hanji
- Nakajima Hiroki as Shingo Kuriyama
- Sano Shiro as Shogen Maisaka
- Ishiguro Ken as Shichizaemon Kokubu
- Matsuura Miyabi as Kaoru
- Kamijo Tsunehiko as Kucho
- Kinoshita Houka as Kisoji Ito
- Mimura as Suzu
- Yajima Kenichi as Yosaburo Horie
- Hamada Tatsuomi (ep6)
- Original work: Novel by Asada Jiro (浅田次郎)
- Screenwriter: Watanabe Mutsuki
- Director: Ishihara Shigeru, Hattori Daiji (服部大二), Inoue Masanori (井上昌典)
2014 movie "Samurai Hustle" also deals with the practice of "Sankin-kotai."