E1Episode 1
Where to watch
Not available in United States
Streaming in 1 other country
The Reason My Boyfriend Married My Older Sister 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
E1
E2Episode 2
E3Episode 3
E4Episode 4
E5Episode 5
E6Episode 6
E7Episode 7
E8Episode 8
Cast · Directed by Hirokazu Fujisawa
More from Shiori Akita · Lead actress
More from Hirokazu Fujisawa · Director
School Trip: Joined a Group I'm Not Close To
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JINXED
2015
My Frosty Coworker Is Only Sweet to Me
2025 · 5.5
Aoshima-kun Is Mean
2024 · 7.4
Marriage with Me? Seriously?
2023 · 6.5
The Ingenuity of the Househusband
2021 · 6.7
Sawako: It's Endless Revenge
2022
Changes of Heart
2025 · 8.0
Kyokyo Jitsujitsu
2012 · 8.0
チア☆ドル
2015
See all fromHirokazu Fujisawa
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The Reason My Boyfriend Married My Older Sister — streaming FAQ
Which OTT platform streams The Reason My Boyfriend Married My Older Sister?
The Reason My Boyfriend Married My Older Sister 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 The Reason My Boyfriend Married My Older Sister on Netflix?
No, The Reason My Boyfriend Married My Older Sister is not on Netflix in United States as of September 2026.
Is The Reason My Boyfriend Married My Older Sister on Amazon Prime Video?
No, The Reason My Boyfriend Married My Older Sister isn't on Amazon Prime Video in United States right now.
Where can I watch The Reason My Boyfriend Married My Older Sister for free?
The Reason My Boyfriend Married My Older Sister isn't streaming in United States yet, so there's no way to watch it free at the moment.
How many seasons are in The Reason My Boyfriend Married My Older Sister?
The Reason My Boyfriend Married My Older Sister has 1 season in total (8 episodes). The series concluded in 2025.
Are all episodes of The Reason My Boyfriend Married My Older Sister out yet?
Yes — all 8 episodes across 1 season of The Reason My Boyfriend Married My Older Sister are out and available to stream.
Is there a Season 2 of The Reason My Boyfriend Married My Older Sister?
No — The Reason My Boyfriend Married My Older Sister ended after 1 season, so there is no Season 2.
Is The Reason My Boyfriend Married My Older Sister based on a manga?
Yes — The Reason My Boyfriend Married My Older Sister is based on a manga.
