Currently available on 2 streaming services.

THE iDOLM@STER Side M (2017)

Original Title: アイドルマスター Side M

24min
THE iDOLM@STER Side M

THE iDOLM@STER Side M - watch online: stream, buy or rent

Currently you are able to watch "THE iDOLM@STER Side M" streaming on Crunchyroll, Crunchyroll Amazon Channel.

Cast

Takuma Terashima
Touma Amagase (voice)
Yoshitsugu Matsuoka
Shouta Mitarai (voice)
Daichi Kanbara
Hokuto Ijuuin (voice)