After the final battle Sanemi became a heavy drinker and it was when he started to break things he realised he was becoming like his father and decided he needed help... But who could he ask, since everyone he loved died?…

So, in a moment of despair, he decided to look for you… even though he knew you two never got along since he was too full of pride to befriend you… He had a small hope that you'd help him

So, in the middle of the night, he knocked on your door…