To be a brother

From prompt: What if Draco had an older sibling that was favored by his parents, and said sibling died because of something the Malfoys consider to be Draco's fault? Now he has to compensate for everything and is trying to please his parents so they may someday love him. But they can't. And they won't. It's not as simple as the dead sibling anymore though…. Now it's everything else