>>104508420She never even said it was a liver.
In fact, considering it was a haphazard leak, I'm far more inclined to believe Kiara was the one who mentioned it, as she could have heard from Mori about the original plan.
Hell, we don't have any confirmation that she met with any employed niji during the period from graduation to redebut, and to date, the only confirmed one was Ike's one-sided mention of seeing her.
(Likely at a meet and greet)