>>1472463now i've done my digging on desuarchives as well, and i saw the original pic name has "BOOKWALKER" on it, that uncovers a lot
https://desuarchive.org/a/thread/268228606/#268254640the manga is Onee-sama and the Giant, and i'm pretty sure you can't find anything using that image because it's probably a new chap that's still behind the paywall and not leaked yet
here are the other images of the manga posted by the original image poster (all of the ones with BOOKWALKER on the name)
https://desuarchive.org/_/search/width/889/height/1325/ 
