there's so many sentences where a comma is not followed by a space. it's quite distracting to read.
also, the sentences felt a little bit... stiff?
aside of that, i appreciate the effort of doing the moans. not many translators do that in here, especially new ones.
i hope you get around to fix the commas. cheers!

Base +21, sitora +6

"Were... actually not blood-related."

Dear diary, today I hit the jackpot.

Base +20, cybeast93 +22, rockingoldensamurai +7, Gh1 +7, tainas -7, feelsbadman -7, AZN DUDE +8, csavarhuzo +6, Cinj -12, Kanist +6, gotdajuice +6, Jouven +8, ThanatosNebula76 -8, and 10 more...

geee why inseki???????? instant boner killer

Base +6, Jack Woods -14, Makiua -6, uberzaeks -6, tainas +7, Sentor +6, feelsbadman +7, kagezoro +6, csavarhuzo -6, Cinj +12, hoigoigoi +30, nurd +6, ThanatosNebula76 +8, and 19 more...

is this the legendary doujin where incest and inseki co exist?? :D

Base +6, Skeloperch +6, Winter is Cumming +6, dharumas +17, LettermanZA +6, Shintaro- +6

incest fag are mad

Base +7, concert -6, gotdajuice +6, loplopsama -6, anon431 -6, funk_u_up +13, SkitZoFrenic -11, dennismenace1 +3, Badat -11, weltall1021 -8, feelsbadman -7, csavarhuzo -6, Vodsky -6, and 19 more...

You used the wrong 1280x version of the images. Download the archive or the non-downsized torrent (right side.)

More misc thoughts:

1. Ellipses are three dots, not two.
2. Your font leading is actually too small. Your characters sometimes overlap (especially commas).

Base +23, qazmlpok +24, funk_u_up +13, csavarhuzo +6, Spooky Ghost Butts +8, Megaton +45, Lao Shan Long +7

Kiduki sai tank translation when?

Base +7

Plot Twist: The inseki tag was as big a liar as she was. They're totally blood related, as their parents will confirm when they get found out.

Pretty sneaky, Sis!

Base +6, RarityFann +6, Harvest13 +8

Honestly the whole story feels rushed as *hell* to me. A lot to unpack here, and 24 pages is not nearly enough to fit all of it, or if it is then it wasn't executed well. I would have been happier if it cut out the rather dull sex scene entirely and focused on the build up to that point with the characters sorting out their feelings first.

Thinking on it further, I think the characters lack personality, which I think could have really helped because I'm almost positive there have been other authors who manage to pull something like this off with better results in the same amount of pages.

Credit where it's due however, the art is decent. I like the character designs. The big sis, and even her brother were very cute.

The sex scene itself was pretty lackluster with fairly bland poses, and with the plot and characters having suffered the most it further robs the work of the raw passion you might otherwise have. Especially considering how taboo their relationship would be as freshly graduated from an off-limits brother-sister relationship to one where they can more openly act on their feelings romantically. They should be going at it like horny teenagers with a sense of urgency and impatience where they've realized and fully reciprocate each other's love. It all just falls super flat with the way it is now. Almost painfully vanilla.

The ingredients for a great vanilla hentai story are there, like the premise and character designs, but it's just really missing that OOMPH factor and emotional build-up and payoff. Like perhaps it tried to do both but only succeeded halfway on both fronts.

For me this is a 3 of 5. Thanks for the upload and translation!!

Base +6, ByCreativ +4, Nicosai +19, allodude +6, olirin +6