Chihiro, the child
Randomly playing around with some concepts, I stumbled upon the creation of a character. Chihiro is a young swordswoman who's master had died due to old age. Having had the experience of being the only student to a master who has reached the age of 325, she embodies the two main qualities that make her a force to reckon with; a fresh childlike perspective on everything, and an extremely lethal and precise battle intuition. Note that she never kills her opponents out of empathy, but strikes them right on the body parts that immobilises them in lightning speed.