User blog comment:B214/Question and Answers/@comment-16281343-20131219101615/@comment-16281343-20131219105441

Well, there's also that. Well, that idea just struck me when the remaining leaders or main members introduced themselves and who are their supposed ancestors.

But since Leonardo is the only main member who hasn't personally interacted with the Gremory group, maybe there is no chance for him or others to explain his character more.

As for now, the scale is tipped more on Leonardo as just another human who possesses Annihilation Maker. I'll just wait for him to come back, if ever he will be, and hope his character will be explained more.