Weird question, but since I know not all yanderes have to be romantic, what would a Yandere AU look like for everyone to else? Like yander Roy, Manny, Harry, etc.
(Well, I'm not super comfortable making any of the kids yanderes, but as for the others:
Yandere Roy would be the typical yandere with Aella but he'd be especially protective of his kids, including Percy. Specifically if any of Percy's partners hurt him, he wouldn't hesitate to teach them a lesson.
Harry's the same with his partners, but he's more cool and collected about it. He'd be able to keep it a secret for a good long while. And even when the secret is revealed, he tries being casual about it.
Robin is a lot more aggressive and sloppy as a yandere, but still manages to get the job done.
Aella would be overly sweet as a yandere, easily tricking anyone she deems worthy of killing. And if you find out, she wouldn't try manipulating you. But she would explain herself as sweetly as possible.)