Grand Replacement. Old gallery: https://e-hentai.org/g/715209/0e39351b2c/ by GHY22134 2014-07-02 23:31 Changes: ordaaaaah. Yes, it has one less page because it was a duplicate, and it's incomplete because it's missing an actual page. See p. 94, in the contents you can see that the P.53 doesn't exist. I didn't find it on internet, sorry and uploader didn't answer me.
Official site: https://www.kadokawa.co.jp/product/200601000241/ eBay: https://www.ebay.com/itm/JAPAN-Mutsumi-Sasaki-Art-Works-1998-2005-Happy-Lesson-Futakoi-Art-Book/270858500139 (full pages photo, and cover)