Maevik
Where Harry has to go through year five grieving Cedric's death, with his friends hiding things from him, Dumbledore ignoring him, and Umbridge harassing him...
...but also dealing with the fact that Draco Malfoy is being... reasonable.
Or:
Where the only thing that still feels familiar... is Draco Malfoy.
Or:
Draco hates he's being forced to teach Occlumency to Harry.
Harry hates it too. Probably.