It dose make sense, then again, Kira is suppose to be the Jotaro's counter-part. Maybe both of them could be Jotaro's counter part, as Erina has like three counter-parts:Hot Pants, Lucy Steel, Rina Higashikata.
Jotaro is Holly-san's son
Nijimura-san is Holly-san's daughter
Nijimura-san = Jotaro??