For future reference as to what Nazunas stance on interactions with males is
>Nazunaは男性と絡むってことない
>Nazunaは男性知りあいがいない
Shifted some particles and removed some fluff like マジで to make it a cleaner translation for your translator
tl;dr:
>Nazuna doesn't have any interactions* with men
>Nazuna doesn't know any men

extrapolation:
(too many words skip to tl;dr if you don't care saruei)
'karamu' is commonly used in slang as a more casual version of its proper meaning to discuss very casual involvement, and by casual I mean as casual as interactions that never go beyond cordial/polite social media interaction, so saying there there will not be any interactions with men is a fairly heavy-handed dismissal. Not just of collabs but even seemingly trivial intentional interactions could be referenced to by karamu

tl;dr:
no m*ales, she pretends she does not see them