You can find digital versions and full texts on platforms like Archive.org or through official publishers like J-Novel Club.

The following is a draft story inspired by the "opening" of such a mysterious file, blending the meta-experience of a modern researcher with the atmospheric world of the series. The Extraction

The series is available as both light novels and a manga adaptation .

Full text of "The Apothecary Diaries Light Novels ( volumes 1-15)" Internet Archive