Something happens and Kim becomes the kind of person she would have gone up against back when Team Possible was still a thing. Shego helps pull her back into the light.
Turned to evil by the Attitudinator, Kim Possible now wants to save the world by taking it over. The only one who can stop her is Ron. As much as he doesn't want to hurt her, he'll do anything to save Kim.
Having a crush on Kim Possible is embarrassing. Shameful. Career ending. It's just not okay. But looking at her right now? Shego can't help herself.
After spending days with Ron and Ron alone on a stakeout, Kim decides that even when it's time to go to bed, she wants to stay with him.
Harry is a Hitwizard (and also MIA.) Draco is a Legilimens (and fakes going on vacation to find Harry.) It's been eight years since the Battle of Hogwarts, and now a Death Eater straggler is on the loose, killing Muggles. Head Auror Kingsley Shacklebolt pairs the two together because they're the magical world's best shot at stopping this mad man.
The Aurors will one day catch up with Draco so he must arm himself to escape a hypothetical Azkaban. He's not going to wallow in self-pity like his father, he's going to find a way out because there always is one. He tries to form a Patronus. Without words and without a wand. Just like trying to kill Dumbledore: quite unfashionable.