The omnibus manga tells a series of short stories about conversations young women have while waiting at railroad crossings.
Sato launched the manga in Monthly Action in 2016. Futabasha published the manga's seventh volume last September. Crunchyroll publishes the manga in English.
The manga inspired a television anime in April 2018. Crunchyroll streamed the anime as it aired in Japan.
Sources: Monthly Action October issue, Amazon