I'm worried about the two kids Kaname brought with him, although Ryuuji's sigil seems to have evolved so he should have noticed if they were breed, too.
(I'll call them breed because that is obviously their real name, see chapters 69, 70 and so on. I don't get why the TL sticks with greed to the end instead of just adding one foot note saying "Yeah, author gave us the official romanization so we'll use that from now on". This shouldn't be a hill to die on.)