It was serialized in Shueisha's josei manga magazine Cocohana from March 2019 to October 2021, with its chapters collected into eight tankōbon volumes.

A live action film adaptation premiered in Japan in May 2023.

Written and illustrated by Aya Nakahara, Otonanajimi was serialized in Shueisha's Cocohana magazine from March 28, 2019,[2][3] to October 28, 2021.

[6][7] In October 2022, it was announced that the series would be receiving a live action film adaptation, starring HiHi Jets member Mizuki Inoue and Rinka Kumada.

The film is directed by Hiroto Takahashi, based on a screenplay written by Erika Yoshida.