The currently on-going Fire Emblem Engage manga, available via Saikyō Jump and Shōnen Jump+, will be releasing in standalone book format from 4th September 2023.

Above is the cover of Volume 1, illustrated by Kyou Kazuro and shared by Saikyō Jump.

The first volume includes 192 pages. At the time of writing, the manga has 6 chapters (and a prologue), which you can read here.

The manga is only available in Japanese, although you can find fan translations online.