Currently available on 2 streaming services.

Opus.COLORs - watch online: stream, buy or rent

Currently you are able to watch "Opus.COLORs" streaming on Crunchyroll, Crunchyroll Amazon Channel.

Cast

Yuma Uchida
Kazuya Yamanashi (voice)
Ryota Osaka
Takise Kyou (voice)
Natsuki Hanae
Tsuzuki Jun (voice)
Ryota Suzuki
Kirinoe Mashuu (voice)
Yuuichirou Umehara
Haijima Iori (voice)