E1
Episode 1
Where to watch
Not available in United States
Streaming in 1 other country
灰色の虹 isn't on any streaming service in United States right now, but it's available in Japan. Streaming rights are licensed per country.
Seasons & Episodes
Cast
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灰色の虹 — streaming FAQ
Which OTT platform streams 灰色の虹?
灰色の虹 isn't on any streaming service in United States yet, but it's available in Japan. Streaming rights differ by country — switch your country in the header to see where.
Is 灰色の虹 on Netflix?
No, 灰色の虹 is not on Netflix in United States as of August 2026.
Is 灰色の虹 on Amazon Prime Video?
No, 灰色の虹 isn't on Amazon Prime Video in United States right now.
Where can I watch 灰色の虹 for free?
灰色の虹 isn't streaming in United States yet, so there's no way to watch it free at the moment.
How many seasons are in 灰色の虹?
灰色の虹 has 1 season in total (1 episodes). The series concluded in 2012.
Are all episodes of 灰色の虹 out yet?
Yes — all 1 episodes across 1 season of 灰色の虹 are out and available to stream.
Is there a Season 2 of 灰色の虹?
No — 灰色の虹 ended after 1 season, so there is no Season 2.