Currently available on 2 streaming services.

Streaming, rent, or buy Onimai: I'm Now Your Sister! – Season 1:

Currently you are able to watch "Onimai: I'm Now Your Sister! - Season 1" streaming on Crunchyroll Amazon Channel or buy it as download on Microsoft Store.

Cast

Marika Kouno
Mahiro Oyama (voice)
Kaori Ishihara
Mihari Oyama (voice)
Hisako Kanemoto
Kaede Hozuki (voice)
Minami Tsuda
Momiji Hozuki (voice)
Kana Yuuki
Asahi Ohka (voice)
Natsumi Hioka
Miyo Murosaki (voice)