So they really didn't join. I'm gonna miss Maybell. Celt has a reputation for swindling newbies. Why am I not surprised. What he said about the marquis family also applies to the Edvan family. I mean, "a distant relative becoming the most influential candidate"? Bro, that very thing already happened to Elma and his family.
Snow sounds like what if Maris was born as count Edvan's eldest child. So she's seemingly being set up as the antagonist of the next arc, but if the theory that Kalos is the next villain holds up, then Snow will be a potential ally instead. Also, that unsubtly cold-sounding name suggests she'll be the token ice queen Kuudere in this manga.