We Couldn't Become Adults

 (Japanese: ボクたちはみんな大人になれなかった) is a Japanese romance film directed by Yoshihiro Mori from a screenplay by Ryô Takada. It is based on the book by the same name by Moegara. The film is about a forty-something recalling his past relationships.

Summary
"Prodded by a friend request, a feckless forty-something recalls his past relationships from the 90s onward, looking for his vanished hopes and dreams."

- Official Netflix synopsis

Cast and Characters

 * Mirai Moriyama as Makoto Sato
 * Sairi Ito as Kaori Kato
 * Masahiro Higashide as Kenta Sekiguchi
 * Sumire as Sue
 * Atsushi Shinohara as Toshihiko Nanase
 * Takehiro Hira as Keiichiro Sanai
 * Moemi Katayama as Ayaka Iwai
 * Masanobu Takashima as Takayuki Onda
 * Lasarl Ishii as Mitsuo Oguro
 * Yuko Oshima as Megumi Ishida
 * Masato Hagiwara as Hideaki Miyoshi