ボクたちはみんな大人になれなかった
Prodded by a friend request, a feckless forty-something recalls his past relationships from the 90s onward, looking for his vanished hopes and dreams.
We Couldn't Become Adults (2021) is a drama and romance film directed by Yoshihiro Mori, released on November 5, 2021 with a runtime of 2h 4m. It stars Mirai Moriyama, Sairi Ito, Masahiro Higashide and Sumire. Viewers rate it 6.4 out of 10 across 55 ratings.
Watch the official trailer for We Couldn't Become Adults before you stream it.
Mirai Moriyama
as Makoto Satō
Sairi Ito
as Kaori Kato
Masahiro Higashide
as Kenta Sekiguchi
Sumire
as Sū
Atsushi Shinohara
as Toshihiko Nanase
Yuko Oshima
as Megumi Ishida
Masato Hagiwara
as Hideaki Miyoshi
Takehiro Hira
as Keiichiro Sanai
Moemi Katayama
as Ayaka Iwai
Masanobu Takashima
as Takayuki Onda
LaSalle Ishii
as Mitsuo Oguro
Amane Okayama
as Taniguchi
Directed by Yoshihiro Mori, written by Moegara and Ryo Takada, produced by Naoto Kuribayashi and Teruhisa Yamamoto.
Average viewer score of 6.4/10 from 55 ratings.
We Couldn't Become Adults presents a deeply emotional journey through loss and unresolved pasts, told with a compelling reverse narrative that ties beautifully into its ending. Strong performances, especially by Mirai Moriyama, elevate the storytelling, capturing the character’s growth across timelines. With thoughtful cinematography and a resonant soundtrack, the film leaves a lasting impression on drama lovers.…
Reviewed on September 30, 2025
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We Couldn't Become Adults (2021) is available to stream on Netflix and Netflix Standard with Ads. Streaming availability is checked against JustWatch data and can change by region.
The main cast of We Couldn't Become Adults (2021) includes Mirai Moriyama, Sairi Ito, Masahiro Higashide, Sumire and Atsushi Shinohara. The film was directed by Yoshihiro Mori. You can see the full cast and crew list, with character names, further up this page.
We Couldn't Become Adults was released on November 5, 2021 and runs for 2h 4m.
We Couldn't Become Adults (2021) holds an average rating of 6.4 out of 10 from 55 viewer votes, and is a good pick if you enjoy drama and romance films. Read the viewer reviews on this page to decide for yourself.
Yes. The official We Couldn't Become Adults trailer is embedded in the trailer section of this page and plays instantly, no download or sign-up required.
