The iDOLM@STER Cinderella Girls: Spin-off!
Japanese title: アイドルマスター シンデレラガールズ Spin-off!
Type: ONA
Episodes: 1
Source: Game
Studios: Orange
Producers: Bandai Namco Entertainment
Duration: 6 min
Rating: PG-13 - Teens 13 or older

The Idolm@ster Cinderella Girls 8th anniversary special promotional film.

(Source: AniDB)