No you drooling fops, this is not a chick dressed up as a samurai, or even a female-samurai, it is a onna-bugeisha. The onna-bugeisha were a class of female warriors that belonged to the Japanese upper class pre-Meji era. These warriors reached their peak around the Kamakura Period (1180-1185AD) in medieval Japan. They predated the samurai themselves and led their own clans of fighters.
They were masters of the naginata, a pole weapon with a 15-30-inch long swordlike blade on the striking edge. These weapons became standard for Japanese foot soldiers for centuries but in the hands of a straight up and down female death dealer like the onna-bugeisha, they were an art.
From the 1600s onward their ranks were fewer and fewer to where by the 1868 Battle of Aizu, in which 20,000 modern Imperial Japanese troops trained in the ways of American and European warfare with rifles crushed 5000 martial warriors with ancient weapons, there were but 30 female onna-bugeisha in the ranks.
So goes the evolution of arms.
Hail to the onna-bugeisha, we salute you.