Where to watch
U-NEXT
Apple TV Store
FOD
Cast · Directed by Michel Boujenah
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Heartstrings — streaming FAQ
Which OTT platform streams Heartstrings?
Heartstrings is streaming on U-NEXT in Japan, and available to rent or buy on Apple TV Store and FOD. It's not currently on Netflix.
Is Heartstrings on Netflix?
No, Heartstrings is not on Netflix in Japan as of August 2026. It's currently on U-NEXT.
Is Heartstrings on Amazon Prime Video?
No, Heartstrings isn't on Amazon Prime Video in Japan right now. It's on U-NEXT instead.
Where can I watch Heartstrings for free?
Heartstrings is available on U-NEXT in Japan, but you'll need an active subscription — there's no free option right now.