for an answer
The whispers in the corners of his mind persist (what if another brother-) but he ignores them, Touka is right, the village is what Tobirama wanted and he will not endanger that (not even if he wants to burn them all down, they never deserved-) not when there are other targets for his anger, better ones. This man almost killed him, this woman sought to break him for information, this person left him in the sun for days with no thought for his china pale skin (and, albino; that man dies slowly- Madara knows more of burns than almost any other man alive), together they wipe clean the slate of his pain. Its not enough, never enough, but its better than he though he would find; there is an understanding between them that he has never known before and more laughter (cruel or not) than he has ever known before. (perhaps he grows complacent, perhaps they both do, for when she dies, well,)
So he takes her home to be buried with her brother, he owes her that if he owes her anything, he carries her cooling body back to the place they both turned their backs on and looks down on his dream so many years too late. He slips through the streets to that first grave, he buries her beneath a simple stone (blood sister, always) but when he see it- (another stone besides that first- Hashirama, founder, father, brother, we owe him so much) he cannot stop his anger, searing though him like fire in dry land; he dares to sleep next to the man that he deprived of all memory, he dares to think himself worthy- (Madara can hardly breath). And the village itself- it is not what he planned for (in the meticulous notes so lovingly crafted) there is so much wrong with it, the clans each live apart from each other, the children train separately (the academy, his great love, rife with inequality, clan children know so much more than the others and teachers that do not look to teach all equally)
This is not what he died for. This is not what he thought he left behind, this is not what he wanted, they do not deserve him.