Moto InCha No Kyonyuu Yariman Imouto Ga Erosugite, Onii-chan Wa Mou… (“My Younger Sister Who Was A Bookworm Turned Into A Slut With Big Tits, So I…”) volumes 0-1-2-3, in grayscale and full colour versions, by Ichinomiya Yuu [English, 337 pictures]

That looked exceptional.
Until I read it thoroughly.
And then it confirmed it was exceptional

I’m sharing 4 volumes here.
3 of them come in two versions, grayscale and full colour.
The final volume is only in grayscale.

We’re with a simple and efficient story canvas: a shy and reserved younger sister undergoes a metamorphosis (I shall bravely *still* use that word, one day we shall overcome the ShindoL curse) as she enters highschool. She creates herself an anonymous online account in which she posts lewd pics, and gradually regains self-confidence and self-esteem, until she sleeps with her first man, a mind rocking experience, wow, how could she miss on that?!?
Some weeks later, she has undergone her transformation, she’s now a happily slutty gyaru.
The elder brother enters the plot, his sister orbiting around him until the inescapable collision happens…

That was surprisingly wholesome in the second half, and as for the art… DAYUM!!
The girl was meaty, with incredibly sexy compelling eyes, her large breasts and generous hips were such an alluring constant invitation. To make it even better, the amount of censorship was low enough to let us fully enjoy the action

I know at least a volume was translated by Tamamo, Takoponi, Builderofcastles and Pinkachu Killer, and colorized by Thecolorlessart, no idea for the others.
Still, thanks to everyone involved in the scanlation!

By the same artist, I also share Rental Kanojo No Oshigoto and Ore-Mesu Trans.

A quick precision: for the volume 3, you may have the impression there’s a duplicate with the same pictures again, but it’s actually an alternate version in which the sister kept her bleached hair, while the original version has her with her original darker hair.

And now, the download & gallery links

Complete pictures galleries:
Moto InCha No Kyonyuu Yariman Imouto Ga Erosugite, Onii-chan Wa Mou…
Vol. 0, colorized – Vol. 0, grayscale
Vol. 1, colorized – Vol. 1, grayscale
Vol. 2, colorized – Vol. 2, grayscale
Vol. 3, grayscale

Originally, those 7 works weighted a total of 1.7 GB.
Three of them had images over 6000 px high, I shrunk them to 3000 px, which is already very high res. The four others, they simply had their images very slightly recompressed, not enough to allow the naked eye to perceive any change.
End result, smugly smiling: this gave an archive “only” 276 MB large

Or you can also use the Alternative:
Zip Mirror #1 – or – Zip Mirror #2 – or – Zip Mirror #3

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Smaller version incoming!
As of usual when ☑ the images are in high enough resolution and ☑ the archive is quite big for its number of pictures, and ☑ it offers a significant gain, and ☑ I have enough time to do it, if it may help, I’m offering you a smaller version, in which I resized the images to lower-standard 1600 px resolution. Originally, in 5 out of 7 volumes, the images were between 1791 and 3000 px high, it’s only the volume 3 (both grayscale and coloured) that underwent no change, as it had too small images anyway.
The zip shrank from 276 MB to 123 MB.
Personally, I prefer it for reading, and it takes less disk space.
Download links, Zip: Mirror #1 – or – Mirror #2 – or – Mirror #3 – or – Mirror #4