We are fairly sure Ambition was not actually cleared. Ray-kun would have mentioned that item if he actually had another one-- I'm one of the people he sent to Indulgence as a favor to get the first one, and Ray-kun told me about it before he even had the thing. There is no reason he would have kept it quiet, nor any reason he would not have left something like that behind with the other things he decided not to bring out with him. I'm confident it was planted.

Not to mention that unless Nonon-san was lying about the results of her work, either Cunning or Justice was innocent, yes? Cunning was not; therefore Justice ought to be clear.

That only leaves Ambition.