She probably works as an adult content creator, either as a voice actress for erotic games, ASMR, a cam girl, OF or something of that nature.
Could explain why she doesn't seem to be on good terms with her family, maybe they disapproved.
Pretty sure she's just some kind of voice actress for 18+ content.
Could be one of the reasons why her family didn't tell anything to him, maybe they were ashamed or something like that.