all 14 digital volumes are available for free on amazon , each volume has around 50 pages : https://www.amazon.co.jp/-/en/一智和智-ebook/dp/B08R5FHQVL/
there is also a printed paper volume , with 176 pages : https://www.amazon.co.jp/-/en/一智和智/dp/4047360023/
on the japan amazon page , you can search for the mangaka 's other manga-s : 一智和智