U-NEXT
dAnime Amazon Channel
Amazon Video
FOD
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E1Hikari Tsuneki, Chapter 1: Decision
Where to watch
Availability shown for Japan · rights vary by countrySeasons & Episodes
E1
E2Hikari Tsuneki, Chapter 2: Deep in the Mountains
E3Hikari Tsuneki, Chapter 3: In the Men's Bath
E4Hikari Tsuneki, Final Chapter: Starry Sky
E5Tooru Miyamae, Chapter 1: Trade
E6Tooru Miyamae, Chapter 2: Versus
E7Tooru Miyamae, Chapter 3: Brother Complex
E8Tooru Miyamae, Final Chapter: Fluffy
E9Kyouko Tono, Chapter 1: Home Ec Club
E10Kyouko Tono, Chapter 2: Hand-Me-Down
E11Kyouko Tono, Chapter 3: Awakening
E12Kyouko Tono, Final Chapter: First Love
Cast
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Seiren — streaming FAQ
Which OTT platform streams Seiren?
Seiren is streaming on U-NEXT and dAnime in Japan, and available to rent or buy on Amazon Video and FOD. It's not currently on Netflix.
Is Seiren on Netflix?
No, Seiren is not on Netflix in Japan as of August 2026. It's currently on U-NEXT and dAnime.
Is Seiren on Amazon Prime Video?
Seiren isn't included with a Prime Video subscription in Japan, but you can rent or buy it on Amazon Video.
Where can I watch Seiren for free?
Seiren is available to stream free (with ads) on Amazon Prime Video in Japan.
How many seasons are in Seiren?
Seiren has 1 season in total (12 episodes). The series concluded in 2017.
Are all episodes of Seiren out yet?
Yes — all 12 episodes across 1 season of Seiren are out and available to stream.
Is there a Season 2 of Seiren?
No — Seiren ended after 1 season, so there is no Season 2.