Her fame as a master swordswoman, her great strength, and being the niece of Dracule Mihawk. Her dream is to become the greatest swordswoman in the world.
Kat is a young, normal-sized and skinny girl, with purple hair and bright gold eyes. Many people consider her to be very attractive or even beautiful.
Her fashion frequently changes as does her hair style. On her left wrist, she wears a Log Pose, Kat frequently changes into a variety of clothes in the series for each arc. Her trademark shoes are gold high-heeled sandals. but they do not affect the way she walks or her speed.