Following the conclusion of the promotional activities for the Japanese version of "Touch", Sori launched a Kickstarter project on December 7, 2018 in order to fund her sophomore release titled "I'm Ready".

[1] She subsequently uploaded videos of herself preparing the rewards for the supporters of the project on her official YouTube channel, which included a custom-made baseball cap with the song title printed on the front panels.

[2] The song is a musical departure from Sori's previous releases as a member of both CocoSori and Real Girls Project as well as "Touch", seeing her embrace a much more "mature" sound.

Subsequent scenes see her accompanied by MikuNana performing the choreography of "I'm Ready" in multiple settings including the interior of a warehouse, in front of shipping containers, and on top of a rooftop, during which they are joined by numerous dancers for the final chorus.

[11] The song was later performed during her first Japanese fanmeet titled "SoriNation in Japan", which was held on February 11, 2019 at Club Citta in Kawasaki, Kanagawa.