On October 10, it was announced that SPYAIR will be providing the theme song and DOES the insert song for the anime film 'Gintama THE FINAL' that's slated to open in theaters on January 8, 2021. 

'Gintama THE FINAL' is the last installment of the 'Gintama' franchise that has been running for 15 years. In order to recover peace in Edo, Gin-san and the Yorozuya members along with their allies Katsura Kotaro and Takasugi Shinsuke, and the Shinsengumi fight their last battle. 

Until now, SPYAIR has provided five theme songs for the 'Gintama' franchise. The theme titled "Wadachi" was written by MOMIKEN (B) and composed by KENTA (Dr). They commented, "We are really grateful to have met this great work that has changed our band life," and "We wrote a song that's perfect for Yorozuya's finale, so all you Gintama fans, let's watch the compilation of Gintama at the theaters in the beginning of 2021!" 

DOES is no stranger to 'Gintama' either as they also have five tie-ups with the series. After going on hiatus in September of 2016, they resumed their activities in January of this year. As such, this will be their first new song in a while. The title and other details on the song will be revealed at a later date. 

In the meantime, you can check out the trailer featuring a clip of "Wadachi" below.