It was okay to read. The sister, Jin, has an interesting character, and I'm quite fond of her, actually. The brother, Konoe, was a pestering fly, and an annoying one at that. Konoe was a weak character, honestly, and I'm a bit confused as why a brother would want to change their sister in the first place. Siblings should accept each other, even their flaws, as corny as that sounds. I'm not exactly sure if he thought changing her into a feminine girl was for the better, or his pet-peeve is tough girls, but it made me question afterwards what type of principles he was raised under.
The plot was okay for a one-shot. It's not completely original, but it's not entirely cliché either. I personally believe it should stay a one-shot, as I see no further interesting, original plot lines you can add to the current one. If it did become a series, it may drag, and it could go downhill from there.
The art was okay as well. Not intricate or elegant like 'Bride of the Water God', but not an eye sore bomb, either. It suits well for this manga.
My final comment is this, 'Read it if you have absolutely nothing else to do.'
• • • • •
Plot ; 7/10
Characters ; 7/10
Art ; 7/10