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.

The anime's story centers around three demons who are living in the human world: Aira, Shima, and Hana. While they work hard and make friends at school, they pursue their dream of being an idol. However, because none of them know how to be an idol, they keep trying and straying from their goal. Guided by the kind but sometimes strict lecture of Rocket-sensei, they strive to become idols. 

(Source: Anime News Network)

An anime adaptation of the pachinko and slot machine parlor Island in Akihabara, Tokyo's "Aira Project" commercials.

PACHINKO&SLOT ISLAND