Kaoru Matsubara is one of the main characters from the Powerpuff Girls Z anime.
The third and final member of the Powerpuff Girls Z team. Like the original Buttercup, she is a tomboy and is the most easily enraged of the three. She is known at school for being the most athletic girl as she plays tennis, practices martial arts, and numerous other activities, and spends a great deal of time watching sports on television.
She transforms using the phrase "Powered Buttercup" and uses a giant mallet as a weapon.
In the XP4 fics, Kaoru debuted in the XP4 Heroes Coalition - Neo-City Diaries.
In the AWA fics, Kaoru is a student at the AWA Academy and is part of Class 6.
Kaoru is a young , thirteen year old girl with light skin and green eyes. Her hair is spiky black and worn up with a hat. She usually wears t-shirt but a little symbolize to sweater with a little design of strike of green at the neck and two side-by-side shoulder, and her short is green-like with a belt and it's design of diamond over-and-over, hugging around her side waist. And her shoes is snow boots, with ankle-high. Her belt is white with lots of gold buckles and the PPGZ sign, and lies sideways across her waist, unlike the normal way to wear a belt, which is around the waist.
In the second season, Kaoru switches to a long sleeved jacket and underneath of her jacket is a normally black V-shirt, and her pants is just symbolize into green pajama. Her shoes is a PE shoes with the sock underneath of it, and still wear a hat in her head.
When she does transform into her alter-ego. She begun to change her clothes wearing a crimson spaghetti with light vest, black glaps and white/green belt, crimson boots shoes. Her belt is white with lots of gold buckles and the PPGZ sign, and lies sideways across her waist, unlike the normal way to wear a belt, which is around the waist. And addition for that she has two diamond in her side of her hair wearing also earrings.
Kaoru is a tomboy and is the most easily enraged of the three, but she is sometimes more of a brain operator than her leader, Blossom. She seems to dislike the Powerpuff clothes but she doesn't have any choice but to wear it to fight the bad villains, but it seems she enjoys kicking butt but not when she's tired. Kaoru is known at school for being the most athletic girl as she plays tennis, practices martial arts, and numerous other activities, and spends a great deal of time watching sports on television. She is especially good at soccer due to her strengthened determination after receiving new soccer cleats when she was younger. This may be part of the reason why she has so many fan girls, much to her dismay. She detests anything girly, particular skirts, which makes wearing the Powerpuff uniform a bit more awkward. She speaks with a hard and masculine edge and rarely uses honorifics when speaking. Kaoru lives with her Parents and her two brothers, the father of which is a professional masked-wrestler.
Kaoru is a member of the Heroes Coalitions and is part of the Multiverse's Cutest Team as an honorary member. She also attends the Vanguard Academy as a student.
XP4 Heroes Coalition - Neo-City Diaries
In Chapter 5, Kaoru is seen alongside Mato Kuroi, Taro Yamada, Dac, Red, Karizza Stronghold, Sakura Kinomoto, Maya Sparrow, Haru Glory, Shana, Sylvia van Hossen and Erena Reese are seen gathered inside the training area in the Training Facility. They all wonder about the decreased members in their group when Vegeta arrives and revealed that a lot of trainees drops out, much to their shock. Later, Son Goku arrives and reassured everyone that training goes on, Goku then ordered everyone to do a 500 laps, much to their dread and annoyance, Goku then minimized it to 20 laps.
In Chapter 21, Kaoru, alongside Edwin Horace "Ed" Williams and Rolf Yrmi, witnessed Eddy Skipper McGee getting kicked in the nards by Nonon Jakuzure and made fun of him by laughing at his pain.
Buttercup uses a Megaton Dunk Hammer. Her weapon is mainly a close range weapon, although she can also send energy projectiles and extend her hammer to attack at long range. Her hammer is heaviest of the three and only she can carry it with ease. Momoko and Miyako can't lift it even together (which also shows she is the strongest of the three. Blossom saying in the English dub "How can Buttercup lift this?"). Her attacks include Swing Sonic ,Hurricane Lutz, Post-brush Minty Swing,Graviton Drive,Rush Ball, Swing Sonic Flash, Smash Block and Buttercup Finish. When it comes to a team attack, Buttercup can fill the power of the hammer and slash the bad guy and lead to her final attack, Buttercup Finish.
- Kaoru theme song is called Toori Ame by Wiz-us
- She is the only one without any long eyelashes.
- Kaoru hair style is the same as he's older brother, Dai Matsubara.
- The kanji of Kaoru named means is a purely phonetic form in hiragana; no inherent meaning.
- Powered Buttercup doesn't have any special powers unlike the other two has. She is very similar to the original Buttercup.
- She's the only member who is strong.
- Buttercup's signature weapon is similar to Amy Rose's Piko Piko Hammer. Ironically, in Powerpuff Girls Z Kai, her boyfriend is Sonic.
- Buttercup is also the only Powerpuff who can only speak in one language, which is English. Bubbles can speak Spanish and Japanese and Blossom can speak Chinese (however, in Powerpuff Girls Z, the show is in Japanese, with slight English).
- Buttercup from Powerpuff Girls Z was designed after Akane from Ranma ½.
- Buttercup from Powerpuff Girls Z has a similar hairstyle to Goku from Dragon Ball Z/Dragon Ball Z Kai series.
- Matsubara means is 'pine tree plain'.