The trains are built by Kawasaki Heavy Industries to a "Neo Japonisme" concept, combining traditional Japanese craftsmanship with modern styling.

[1] The first two trainsets were delivered from the Kawasaki Heavy Industries factory in Kobe to Takamatsu Depot in February 2017.

[5] From 12 to 15 August 2017, the two sets were also used on additional seasonal Awadori limited express services operating between Takamatsu and Tokushima.

[5] In September 2017, JR Shikoku announced that the pneumatic tilting system used on the trains did not operate effectively, and future trains built based on the 2600 series design would use a pendular tilting system instead.

[6] This led to the development of the 2700 series, which was first announced in 2018,[7] and entered revenue service on 6 August 2019.