Kazuki started writing novels when she was in her second year of junior high school. After taking an entrance exam, she entered into a national university before graduating and becoming busy with work, stopping her from writing. Once she was married and her child entered kindergarten, Kazuki had more free time, which she used to start writing again. From 2013 onwards, she started publishing her novel Ascendance of a Bookworm on the user-generated novel publishing website Shōsetsuka ni Narō which saw success. In 2015, she officially debuted with said series under the T.O. Books imprint.
Much like earlier fanbooks, art, a short story, a Q&A and a bit on making the audio dramas. As a fan of the series I enjoy reading them, but otherwise I doubt they are very interesting. I do wish we got the print versions of some of the later fanbooks, since tbh the art is not as enjoyable in the E-versions.