Matsubara, Kaoru

松原かおる

She transforms by saying "Powered Buttercup" and wields a Daruma Otoshi hammer. Like the original Buttercup, Kaoru is a tomboy and gets angry more easily than the other two. At school, she is known as the most athletic girl because she plays tennis, practices martial arts, and engages in many other activities, while also spending a lot of time watching sports on TV. She is particularly skilled at soccer, thanks to the strengthened determination she gained after receiving new soccer cleats when she was younger. This might be why she has so many fangirls, which she dislikes. She dislikes girls whom she considers very "girly," including Momoko and Miyako. Combined with her hatred of skirts, this makes Kaoru the most reluctant of the girls to join, doing so only because of the power it grants her. In later episodes, she starts to care about Momoko and Miyako and is no longer reluctant to join them in their activities, though she often tries to appear calm and indifferent. She speaks with a harsh, masculine tone and rarely uses honorifics. Her greatest fear is ghosts. Kaoru lives with her father, a professional masked wrestler, her mother, and her two brothers, one older and one younger. She is represented by stars.