Stage by Stage is a — anime, produced by Production I.G.

About the production: the story comes from a other and its current status is "not yet released".

Its main genres are music, with themes such as Idol.

The fourth anime project by Pachinko & Slot Parlor Akiba Island. Taking place a short time after Devidol!, where Aira, Shima and Hana have already become top idols, Stage by Stage will follow three girls with different backgrounds and upbringings, though all admirers of our lovable Devil Idols, as they grow up day by day as virtual idols.

Official synopsis from AniList.