Sai is streaming on Watcha in South Korea. Availability checked 10 June 2026.
Where to watch Sai
🇰🇷 South Korea
Good to know
- Release date
- 2025-04-06
- Runtime
- 1h 0m
- Language
- Japanese
- Seasons
- 1
- Episodes
- 6
- Network
- WOWOW Prime
- Status
- Ended
- Country
- Japan
- Studio
- WOWOW
About Sai
Sai is a 2025 web series in the Mystery genre, starring Teruyuki Kagawa, Anne Nakamura and Pistol Takehara. It spans 1 season and 6 episodes, and originally aired on WOWOW Prime. It holds an average rating of 7.8/10 from 8 viewers. Below you can see where to watch Sai in South Korea — across streaming, rental and purchase options — along with the full cast, trailer and viewer reviews.
Synopsis
A mysterious man appears before six individuals, each struggling with their own issues, as an impending disaster disrupts their lives, unraveling suspense and psychological tension.
Seasons (1)
Cast
Themes & keywords
Frequently asked questions
Where can I watch Sai in South Korea?+
In South Korea, you can stream Sai on Watcha.
Is Sai on Netflix?+
Sai is not on Netflix in South Korea right now, but you can stream it on Watcha.
How many seasons of Sai are there?+
Sai has 1 season and 6 episodes in total.
Who stars in Sai?+
Sai stars Teruyuki Kagawa, Anne Nakamura, Pistol Takehara, Ryuhei Matsuda and Sena Nakajima.
When did Sai come out?+
Sai is a 2025 web series.
What genre is Sai?+
Sai is Mystery series.
User reviews
No reviews yet — be the first to review Sai.
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