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A Sister's All You Need

Available in United States

A Sister's All You Need (2017)

Where can I watch A Sister's All You Need in United States?

As of 2026-09-11, in United States: A Sister's All You Need streams on Crunchyroll, Crunchyroll Amazon Channel; rent or buy on Apple TV Store.

TV-MA · 2017 · Ended · 1 season · 12 episodes · 24m

TMDB 7.6 · 69 votes

Itsuki Hashima is a light novelist obsessed with little sisters, strictly focusing on them when he writes his stories. Despite his personality, he's surrounded by a tight circle of friends, including a beautiful genius writer who loves him, a big-sisterly college classmate, a fellow male writer, a sadistic tax accountant, his editor, and Chihiro, his perfect younger step-brother who takes care of the housework and cooking. As the story progresses, the underlying conflicts of dreams and goals surface, as each character attempts to achieve their dreams, in their own way.

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Availability by country

Streaming in 6 of 6 tracked countries as of 2026-09-11.

CountryLicensed apps
IndiaJioHotstar
United StatesApple TV Store, Crunchyroll, Crunchyroll Amazon Channel
United KingdomApple TV Store, Amazon Video, Crunchyroll, Crunchyroll Amazon Channel
JapanAmazon Prime Video, Amazon Video, FOD
GermanyCrunchyroll, Crunchyroll Amazon Channel
BrazilCrunchyroll, Crunchyroll Amazon Channel

Series Cast

Current Season

Season 1

56% · 2017 · 12 Episodes

Every day is full of fun. But something is missing. "My life would be amazing if only I had a little sister. Why don’t I have a little sister...?" These are the musings of little sister-lover and novelist Itsuki Hashima, who only writes works featuring little sisters. Around him gather a number of unique people: genius author/pervert Nayuta, female college student Miyako, illustrator Puriketsu, and the brutish tax accountant Ashley. Each of them hold their own worries, but live their peaceful daily lives while writing novels, playing video games, drinking alcohol, and filing their tax returns.

A Sister's All You Need? (1x12, 24 December 2017)

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Itsuki Hashima is a light novelist obsessed with little sisters, strictly focusing on them when he writes his stories. Despite his personality, he's surrounded by a tight circle of friends, including a beautiful genius writer who loves him, a big-sisterly college classmate, a fellow male writer, a sadistic tax accountant, his editor, and Chihiro, his perfect younger step-brother who takes care of the housework and cooking. As the story progresses, the underlying conflicts of dreams and goals surface, as each character attempts to achieve their dreams, in their own way.

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FAQ

Where can I watch A Sister's All You Need in United States?
As of 2026-09-11, in United States: A Sister's All You Need streams on Crunchyroll, Crunchyroll Amazon Channel; rent or buy on Apple TV Store.
Where can I watch A Sister's All You Need in India?
Licensed apps in India: JioHotstar.
Where can I watch A Sister's All You Need in United Kingdom?
Licensed apps in United Kingdom: Apple TV Store, Amazon Video, Crunchyroll, Crunchyroll Amazon Channel.
Where can I watch A Sister's All You Need in Japan?
Licensed apps in Japan: Amazon Prime Video, Amazon Video, FOD.
Where can I watch A Sister's All You Need in Germany?
Licensed apps in Germany: Crunchyroll, Crunchyroll Amazon Channel.
Where can I watch A Sister's All You Need in Brazil?
Licensed apps in Brazil: Crunchyroll, Crunchyroll Amazon Channel.
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