Real name unknown, this is simply a ring her she's given in later appearances. A master martial artist as her nickname implies, she was also originally a pro assassin. However when one of her hits fails and ridiculously backfires ending up with her being raped and essentially viewed as a mere whore, she starts running into trouble getting by on her day to day life...
4000 Year Woman
That woman is a top-class assassin. She's the one who killed a criminal boss last year. However... she's been screwing up a lot lately, so she's lost support from her organization. Right now, she's chased by his minions and this is probably their best and only chance to get revenge.
