

The Door into Summer
“An adventure spanning 30 years starts now.”
A pioneering roboticist awakens in 2025 after decades in cryosleep. To change the past and reunite with his adopted sister, he seeks a way back to 1995.
Where to watch The Door into Summer in United States
Click a service to open The Door into Summer there. Availability last verified on June 20, 2026.
Where is The Door into Summer streaming around the world?
| Country | Streaming on | Rent / Buy |
|---|---|---|
| United States | Netflix, Netflix Standard with Ads | — |
| India | Netflix | — |
| United Kingdom | Netflix, Netflix Standard with Ads | — |
| Canada | Netflix, Netflix Standard with Ads | — |
| Australia | Netflix, Netflix Standard with Ads | — |
| Germany | Netflix, Netflix Standard with Ads | — |
| France | Netflix, Netflix Standard with Ads | — |
| Spain | Netflix, Netflix Standard with Ads | — |
| Brazil | Netflix, Netflix Standard with Ads | — |
| Japan | Netflix, Netflix Standard with Ads | U-NEXT, Amazon Video, FOD |
About The Door into Summer
The Door into Summer is a 2021 Japanese-language science fiction and drama film directed by Takahiro Miki. The cast is led by Kento Yamazaki, Kaya Kiyohara, Naohito Fujiki. It has a runtime of 1h 58m. Viewers rate it 6.4/10 across 100 ratings. In United States, it is currently streaming on Netflix, Netflix Standard with Ads.
The Door into Summer was produced by TOHO, Aniplex, and Happinet and made in Japan. It was released on June 25, 2021, and carries a 12 certification.
- Director
- Takahiro Miki
- Writers
- Tomoe Kanno
- Release date
- June 25, 2021
- Original language
- Japanese
- Age rating
- 12
- Status
- Released
- Country
- Japan
- Production
- TOHO, Aniplex, Happinet
The Door into Summer cast & crew
The Door into Summer was directed by Takahiro Miki and written by Tomoe Kanno.
The cast features Kento Yamazaki as Soichiro Takakura, Kaya Kiyohara as Matsushita Riko, Naohito Fujiki as Humanoid Robot, Natsuna Watanabe as Shirashi Rin, Hidekazu Mashima as Matsushita Kazuhito, and Taizo Harada as Sato Taro.
Behind the camera, the score was composed by Yuki Hayashi, cinematography is by Mitsuru Komiyama, and it was produced by Vince Gerardis and Shinzo Matsuhashi.
Is The Door into Summer worth watching?
The Door into Summer holds an audience score of 6.4/10 from 51 ratings, a solidly received science fiction films.
At 1h 58m, it's a standard feature-length watch.
If you enjoy science fiction and drama, The Door into Summer is worth a place on your watchlist.
How and where to watch The Door into Summer
In United States, you can stream The Door into Summer on Netflix and Netflix Standard with Ads. Click any service above to open it directly.
Streaming rights change country by country and month by month, so the options above reflect United States today — switch your country at the top of the where-to-watch section to see availability elsewhere.
Rate & review
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Cast of The Door into Summer

Kento Yamazaki
Soichiro Takakura

Kaya Kiyohara
Matsushita Riko

Naohito Fujiki
Humanoid Robot

Natsuna Watanabe
Shirashi Rin

Hidekazu Mashima
Matsushita Kazuhito

Taizo Harada
Sato Taro

Rin Takanashi
Sato Midori

Kenta Hamano
Tsuboi Gota

Tomorowo Taguchi
Professor Toi

Ryoka Minamide
Young Soichiro Takakura
Jun Hashizume
Matsushita Koichi

Shohei Abe
Insurance Company Employee
The Door into Summer — FAQs
▸Where can I watch The Door into Summer in United States?
The Door into Summer is streaming on Netflix, Netflix Standard with Ads in United States.
▸Is The Door into Summer on Netflix?
Yes — The Door into Summer is currently available on Netflix in United States.
▸What language is The Door into Summer in?
The Door into Summer is originally in Japanese. Subtitle and dub options vary by streaming service.
▸How long is The Door into Summer?
The Door into Summer runs 1 hours 58 minutes (118 minutes).
▸What is The Door into Summer rated?
The Door into Summer is rated 12. It holds a 6.4/10 audience score from 51 ratings.











