Bishoujo Mangekyou -Tsumi to Batsu no Shoujo-

I was intrigued by the title CG and also the brother - sister relation mentioned in the description. There is a lot of CG and animations so this is a clear recommendation if you like this style. The story is quite complex, there is some foreshadowing from the beginning but I actually needed to consult VNDB to get the complete picture. The translation is quite bad, I have seen much better with the recent MTL advances. There are just 3 major choices, two of them directly leading to the corresponding character end so you do not need a walk through. The character endings are considered Bad endings, would not agree at least for one of them. The true ending is basically the full back ground story of the complex family situation. The story is not that long for a japanese VN, this is a clear recommendation with one star removed for the poor MTL.