Flame-Chan wears a bikini as her main underwear whenever she takes her clothes off for the rest of her day. She changes her shoes so that she wears high heels that match the color and/or pattern of the bikini with a few exceptions. Her main reason is that she's seen strippers wear some scantly clad outfits to dance around and she thinks that bikini is fun and arousing to dance in. Because of that, she prefers to wear them when she's at the hot springs or at home.

That being said, my favorite set are Fire Print Bikini and Bunny Girl Bikini Outfit.