Currently available on 3 streaming services.

Streaming, rent, or buy AOKANA: Four Rhythm Across the Blue – Season 1:

Currently you are able to watch "AOKANA: Four Rhythm Across the Blue - Season 1" streaming on Crunchyroll Amazon Channel or buy it as download on Apple TV, Amazon Video.

Cast

Misato Fukuen
Kurashina Asuka (voice)
Azumi Asakura
Tobisawa Misaki (voice)
Nozomi Yamamoto
Arisaka Mashiro (voice)
Madoka Yonezawa
Ichinose Rika (voice)
Ryota Osaka
Hinata Masaya (voice)
Naomi Wakabayashi
Aoyagi Madoka (voice)
Takayuki Kondo
Aoyagi Shion (voice)
Risa Taneda
Satouin Reiko (voice)
Kazuyuki Okitsu
Shindou Kazunari (voice)
Yuko Gibu
Hosaka Minori (voice)
Megumi Ogata
Kagami Aoi (voice)
Natsumi Takamori
Inui Saki (voice)
Kaori Mizuhashi
Irina Avalon (voice)
Hitomi Nabatame
Arisa Botan (voice)