Kiriya is one of the enemies coming from the Dark Zone. In order to gain an advantage above Pretty Cure he joins the Verone school but with time he became friends with Pretty Cure.
Later, after his sister is defeated by Pretty Cure, he tells Honoka the truth about himself, ending in a fight with him later on where he gives them his Prism Stone willingly to change his fate at least a bit and going back into the Dark Zone to be punished for this act.
