Readyyy!
English name: Readyyy!
Type: ONA, Episodes: 1
Aired: Aug 26, 2018
Source: Game
Rating: G - All Ages
Synopsis:
The opening animation to Readyyy!, Sega's male idol training smartphone game. The game is set in Kamakura, and the story's protagonist is a newly-minted producer of the Dia Production talent agency. But the protagonist is also the manager of the dormitory where 18 idols are all living together.

Pre-registration opened the day after the video was posted to the official YouTube channel but there has been no release date listed as to when the app will launch.

(Source: ANN)