found on https://www.pixiv.net/en/artworks/89603386

get a physical copy from https://ec.toranoana.jp/joshi_r/ec/item/040030906535/

the description at tora suggests this pixiv version is only a half of the story...? With the length 32p so I guess this is a sample? pixiv tag is R-18 but the sample is non-h?

also on pixiv the writer uses 霧灘 and the gallery is titled 【ケンハン】夢現(ゆめうつつ) but on tora we get サークル名：
レトロニム , 作家 ：霧灘 and the work title is 夢現 . Why do some artist types hate consistency? Sigh

https://www.doujinshi.org/browse/author/117636/ - this work is not listed on mugi yet

pixiv tag is Ascendance of a Bookworm but I don't recognize the characters? No pixiv characters tag anyway... well, hannnero-reケントリプスケンハンkennhann maybe? But I can't see anything similar at https://ascendance-of-a-bookworm.fandom.com/wiki/Category:Characters