The phrase "real novelty" refers to something that is truly new and unique, different from anything else we have seen before. It suggests that the thing being described is innovative and original, standing out from the ordinary. Full definition
And this comes about through a real novelty in our lives here and now: a new and personal relationship. (faith.org.uk)
Then I said to my guests as they stood to their feet, «You might think on making your commitment complete To a cosmos quite able to make all that we see From the order of laws to real novelty.» (religion-online.org)
I'd never heard of it before then, so it was a real novelty. (tinandthyme.uk)