Purchased from http://www.dlsite.com/maniax/work/=/product_id/RJ290166.html
Scanned RAWs also exist here: https://e-hentai.org/g/1687518/ef23a236a2/

Welp, I guess a week has passed after all (along with another 72). Although it was rather generous of the author to provide such high-quality images in almost pure monochrome (besides the balloons/text/effects that had slightly softer edges—converting the entire translated page into pure monochrome did not affect the look to an extent you could notice, but it reduced the filesize four more times), the wild censorship and immodest effect placement do not allow to utilize it well enough, alas.

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Sakuya proving all the more reason why she's the head maid.

Base +9, HuffmanEightyNine +6