[@Vocab]You're saying that like Aiden wouldn't go after Sasaki if Kotori managed to piss him off somehow, or showed him up somehow that really got him angry. Like I said, in order to get the fight that he wants, he'd be willing to go after anyone she's close to in order to draw her out. 

He's a bastard like that.

Edit:The easier thing to do would be to make it seem like Kotori somehow insulted Aiden in some capacity, then let him handle the rest.