IDEA FOR PROTAGONIST
Siam girl twins, which were seperated by surgical intervention. They had some organs shared in theirs body, which are now replaced by cyber subtitutes. First is relatively good and second is somehow bad - you know, shades of grey - but they share a lot of similar, also. You can meet them in game, do some mission for/with them, influence their feelings for each other. Their characters evolve and you begin to know them better and better. At the end of game, the bad one becomes pregnant, but after huge medical testing, it seems that child will be cripple because of illness transfer from mother. The good one becomes angry and tries to talk some sense to her sister, that she should let the child be killed, because of it probably will not be able to live full and enjoyable life. Doctors on the other hand recommend to use cyber subtitutes on the child. So there appears ethical problem and several questions, like who human is - just brain with soul and behaviour, or the whole body able to live and reproduce - and so on. Maybe this case is published, discussed and watched by public, shared by media and so on. At the final, player, who knows both os sisters somehow gets to scene (f.e. is invited by one or both of the sisters, because she/they trust him from previous quests; OR because he uses cyber parts also, he is invited to media discussion, OR whatever else) and can somehow decide or influence outcome of this problematic.Game could have several endings including murder of bad pregnant twin by her sister, successful birth of crippled baby, which is enhanced by cyber parts, and so on. Whatever ending, there could be huge demonstrations, maybe even attacks and fights on streets; OR just totally silent dark city with everyone thinking about these events OR whatever else.
If you read it all, congratulations