Currently available on 3 streaming services.

Streaming, rent, or buy The Kingdoms of Ruin – Season 1:

Currently you are able to watch "The Kingdoms of Ruin - Season 1" streaming on Crunchyroll Amazon Channel or buy it as download on Apple TV, Microsoft Store.

Cast

Kaito Ishikawa
Adonis (voice)
Azumi Waki
Doroka (voice)
Ryoko Shiraishi
Chloe (voice)
Satoshi Hino
Yamato (voice)
Hikaru Tono
Yuki (voice)
Kisho Taniyama
Shiro Usagi (voice)