So.....if anyone is coming into the comments section looking for a review of this before reading.
Well you found the sub-par version of a good review, but if means anything I'll still say my piece.
This, is just pure WHOLESOME!That originated as a wholesome hentai or...whatever the word is for something like a porn comic, I forget.
But is it good as its hentai version? Well to put it shortly, yes.
Long Version though:
-The art is generally great and nice to look at.
-The personalities are decent for a boy whos family has all but abandoned him, and a lovecraft eldritch horror god...that is also female.
-Manga is a bit repetitive on the whole 'Eldritch horror god is my sister, but we have many fun wholesome times together, all the while my sister is super sexy, with her underwear being seen sometimes, during these wholesome times'
-The chemistry between the two is really nice though, so the previous point doesn't really become that to big of a deal at times.
-For the first couple of chapters though, the author is trying to move away from the ecchi and stuff this manga is based on, and toward the wholesome. So be aware.
-This hentai-turned-wholesome manga, is apparently getting an OVA, according to the site one of the previous commentators here linked.
Overall, I would say it does deserve the 8 maybe a 9. Good break read, from when you wanna get away from the harems, action, isekai, and all that jazz.