Prodded by a friend request, a feckless forty-something recalls his past relationships from the 90s onward, looking for his vanished hopes and dreams.
You can now watch We Couldn't Become Adults online on the following streaming providers in the United States.
| Writing | Moegara | Novel |
| Writing | Ryo Takada | Screenplay |
| Sound | Yosuke Kakegawa | Original Music Composer |
| Camera | Akiyoshi Yoshida | Director of Photography |
| Art | Yuji Hayashida | Art Direction |
| Directing | Yoshihiro Mori | Director |
| Production | Naoto Kuribayashi | Producer |
| Production | Kaata Sakamoto | Executive Producer |
| Production | Teruhisa Yamamoto | Producer |
| Sound | Naoyuki Honzawa | Original Music Composer |
| Production | Ryosuke Hounaka | Line Producer |
| Editing | Norihiro Iwama | Editor |
| Sound | Naoko Asari | Sound Designer |
| Directing | Hayato Kawai | Assistant Director |
