WMG / Pretty Cure Mirai ~ Spark!

Hiroko has a greater affinity for antiquity than the rest of the cast.

She doesn't like pink, and yet she's the girliest of the initial Power Trio. In short, she displays True Blue Femininity more than anything, and it seems clear that she was born in the wrong decade by that clue alone. Either that, or this series is set in the 1950's or the 1960's and thus overflowing with Anachronism Stew.