THE IDOLM@STER SideM Wakeatte Mini!
The Idolm@ster SideM Wake Atte Mini! · アイドルマスター SideM 理由あってMini!
Synopsis
From "THE iDOLM@STER: SideM" franchise which spawned a game, live shows, and comics, comes a short anime featuring the idols from 315 Production in mini form. The total number of idols on the show... is all 46 of them! (Source: Crunchyroll)
Studios: Zero-G
Source: MANGA