And so,
As far as Itsuki knows, the matter with Rishia was settled. But Rishia, who was left in the dark, was troubled
So Itsuki and his comrades put a crime on her to force her to leave.
That is the real crime here.
Cares not for her comrades? Bull$h!t!
They were just too used to dealing with villains that they treated her as one as well.
This isn’t a game!