This stuff reminds me of Yosuga no Sora, but this story looks more natural and rational.

https://www.dmm.co.jp/dc/doujin/-/detail/=/cid=d_313160

Base +33

大脑存放处↓

Base +6, vaeru1575 +6, the_salty_fish +6, cwar41 +7, 林檎的RIN +7, BlueThree +8, DC_in_AC +8, _Manners +3

The new work of the master

Base +6, Cheshire Cat +9, drtomservo +6, Coalrunner +6, X5J9GDA82 +6, xxxcalibur +11, Z4nkur0 +6, anonkun123456 +6, DDude8 +15, 22661756 +7, Slave Girl +16, Gitami +14, Tamaki-Kousaka +8

Great to see more from this artist.
Seems determined to tear our hearts out though. It looks like the parents who adopted the brother are the siblings from the last story who finally got their happy ending. I was happy that it ended on a good note, and then page 6 hit ;_;
Why couldn't they just be happy forever?

Base +6, kafi +9, faytT +7, Klonder +6, the_salty_fish +6, Coalrunner +6, Geot14 +6, zSnake +6, marilmaril +6, Doutey +11, 22661756 +7, Slave Girl +16, Gitami +14

這作者不畫色色的時候水準很高，只要幾頁就能帶出很豐富的情感
可是偏偏畫色色就直接嗨起來，笑到真的很難用www

Base +6, Ghost120 +6, Kilntym +11, cwar41 +7, mbiokbu +7, UsLsWM +7, 林檎的RIN +7, www15o +6, BlueThree +8, T.N.N. +7, LIUR +6, ningnig +6, KyleHuangTW +6, and 11 more...

Did the parents die from a accident?

Base +8

@9321j
It seems that way. They died, and the brother was shown covered in scrapes and bandages, so most likely some kind of car accident or similar.

Base +6, vicenix +6

前面我还以为作者终于要正常一点了，但我很快就发现我错了

Base +6, cwar41 +7, BlueThree +8, CharAznable333 +6, cvb14795 +6

New Nakani just dropped, sound the alarm!!!

Base +6, anonkun123456 +6

I have so much respect for Nakani, they can draw such beautiful expressive characters and emotions, and they know EXACTLY how they want to abuse that power.

Base +7, 佩恩克特 +6, 0xCCBA696 +6

*sees new Nakani*

*develops a case of Nakani face*

Base +10, ohjadatzieterlekruit +6, UsLsWM +7, BlueThree +8, CharAznable333 +6, chinppo_sucker +13, Slave Girl +16, Gitami +14

是我想太多，还是这个世界太疯狂？

Base +1

Oh... it starts off so sad, but by resolves in that heartwarming, "Nakani" way by the end. Perfect.
Always love to see more from my favourite artist; thank you so much for uploading this!

"To be continued..." I can't wait!

Base +6, Slave Girl +16

Nakani buildup is pure visual edging. Those facial expressions while the repellent force of the taboo keeps them in check from fully commiting to what they truly want, and eventually the the blissful cascade of pleasure and relief when their internal magnets are unleashed and allowed to mutually collide.

Base +10, Coalrunner +6, CharAznable333 +6, Slave Girl +16

一脸懵逼的来，射完一脸懵逼的走

Base +6, BlueThree +8, cvb14795 +6, sph_aquA +3

当我在笑时，我还没有察觉到我在笑

Base +5, T.N.N. +7, CharAznable333 +6

這個作者的兄妹甜本總帶酸甜鹹口 是荔枝味 XD

Base +6, CharAznable333 +6, vicenix +6

看到这个名字已经开始有心理准备了

Base +7, gt009 +6

Such a shame the brother is just adopted and it's not true incest between blood related siblings! But love how Nakani is into incest!

Base +6, SenhorPexe +6

对作者上一部作品影响很深，还是等汉化再看吧

Base +6

没有血缘，这还叫乱伦？没有血缘的乱伦还有意思吗，乱伦就是有那个血缘才刺激，没血缘还不如外面找女人

Base +6, 佩恩克特 +6, Rek_s +6

这个作者并不是为了乱伦而乱伦啊，作者借这种冲突表现出的矛盾双方的心理冲突才是这个作者最大的闪光点

Base +5, zhangfq7777777 +5, vicenix +6, Rek_s +6, sz_nanami +3

79-82页女主的这个姿势有什么搜索的tag吗？我很喜欢这种姿势。

Base +5

Pog new nakani, hope a translation comes soon otherwise I'm gonna have to do it myself and it will be cringe and I'll lose the ability to nut to this...

Base +10

色色的部分有点绷不住，太魔性了(ಡωಡ)

Base +4

HOLY SHIT A NEW RELEASE!

Base +7

马拉松般的前戏，突逼啃忒妞╮(╯▽╰)╭

Base +24

像是吃了蘑菇一样

Base +4

I can understand why some people don't like his art-style but his talent for drawing utterly gooned out, cock-deranged, brother-obsessed girls is unmatched. Even though his line-work is rough especially during the sex scenes you can feel the horny derangement coming from his girls.

Base +6