is the french scan mentioned Page1 saying "stop it, big sis!" ? bcs it seems like the english translation is based on the french one. In the korean page one calls him nuna/big sis.
The unofficial english also emphasized on Black Maria saying "wouldnt it be you" as if it was obvious already. Im not complaining, just saying after this there will definitely be some people that took it as legit and start using them in topics/arguments. Lets wait until the viz/mangaplus on sunday.