Maki Aikawa

Formerly a gymnast who trained under her now-deceased mother, Maki uses her acrobatic skill in her fighting style to increase freedom of movement. Her attacks combine vertiginous leaps and summersaults with the fearsome, furious power of her kicks and throws. Maki has the ability to replicate most nearly any move she gets hit with or sees, and when in combat possesses an awe-inspiring resilience, presence, and strength of will. Since her relationship with her father is conflicted, she lives alone. Maki seems to enjoy street fighting for the 'rush' rather than any sense of revenge or honor. When not fighting, Maki tends to stick out in a crowd due to her unusual height (6 feet, which is very tall for a teen Japanese girl) and appearance, preferring to follow her quartet of friends quietly. Her younger sister comments that Maki is somewhat simple minded. Maki is reluctant to deal with several people obsessed with her. She becomes vulnerable to attack, for a moment, when she gets approached in any romantic way, especially with Julietta Sakamoto. Her signature moves are the "Air Spin Driver" and the " Air Cutter"; she is later shown to master the art of Air Flow.

Maki eventually begins working as a policewoman. A target is put on her after she singlehandedly raids and wipes out several yakuza gangs. Unable to reveal her true face, she created the alias "Tiger Master". Tiger Master founds a dojo called the Tiger Cub's Den for children to train and practice moderate martial arts. In the dojo, she meets a young Futaba Shimamura who asks her for serious training. At Futaba's request, Tiger Master becomes Tojima Tanzaburo and others' training partner.

(Source: Kamen Rider Wiki)