She is an attractive young woman who is both the leader of a terrorist organization called Hebi and Canaan's arch-enemy. Once Siam's apprentice and known as Canaan (カナン, Kanan?), she has since thrown away the identity, adopted her current name, and eventually had Siam killed.
On her upper left arm, a strange tattoo is worn, and it possibly is a half of a whole picture of a tattoo if combined with the tattoo on Canaan's arm. However, she amputated this arm during the last battle between her and Canaan, later coming to be known as "the one-armed woman".
She appears easily capable of taking down Canaan even though the latter uses her synesthesia, reasoning that she is no longer manipulated by feelings unlike Canaan. She carries a FN Five-seveN USG as a sidearm.