Kodachi is a 16-year-old japanese student at St. Bacchus School for Girls & is the captain of the school's gymnastic team. Her father is the principal of Furinkan High School, her older brother, Tatewaki Kuno is the captain of that school's kendo team.

Kodachi is a girl of medium height with a curvaceous body. Her hair is very dark, often worn in distinctive one-sided ponytail. She always wears her gymnastic long-sleeved green leotard & white toe shoes underneath whatever outfit she wears. For combat, she'll remove her clothing & fight in her leotard.

Kodachi has a strong flair for the dramatic. When entering & leaving a scene or leaping throughout the city, she is regularly accompanied by a small stream of black rose petals billowing about her, complemented by a shrill, maniacal cackle that is one of her trademarks. But if she has to or otherwise feels like it, Kodachi is more than capable of acting like a perfectly well-mannered lady, & a first class host.

She is a good cook who prepares elaborate meals that seem to be based in French cuisine. But she uses her culinary expertise to her advantage by placing poisons, toxins, serums, & other strange substances in her victims' food to attain something she wants from them.

Kodachi seems to enjoy spending time in the extensive gardens of the Kuno estate, particularly near the large pond, where she keeps her giant pet crocodile, whom she has lovingly named Mr. Turtle. Kodachi's hass shown as quite twisted. She's been more than willing to ambush and beat up rival schoolgirls, & use potentially lethal weaponry during her matches.

Kodachi is an expert in Martial Arts Rhythmic Gymnastics, making her skilled in acrobatics & weapon use in the form of ribbons, balls, clubs, hoops, & ropes, although her ribbon is her most commonly used weapon. She is incredibly agile & will typically make an aerial entrance or exit. A very cunning individual, she is not averse to using unorthodox methods in combat such as rigged weapons, explosives & various poisons.