While details on both projects are scant at the moment, Kadokawa Games revealed plans to release Root Letter: Last Answer and the tentatively-titled Root Letter 2, the former of which is being teased in a live-action video.
The original Root Letter (√Letter) visual novel launched on consoles and PC in 2016, and now there are two followups in the works.
Travelling to her hometown, you must investigate the murder, using her past letters as clues to uncover the disturbing truth.