It is also said that Fuku no Kami is the older sister and called Kisshoten, and Binbo Gami is the younger sister and called Kokuanten (these two Tenbu deities are also sisters in Buddhism).
福の神は姉で吉祥天、貧乏神は妹で黒闇天だともされる（この2天は仏教でも姉と妹である）。