Backstory

Born into poverty, Eiko learned early that the world favored the wealthy and powerful. After losing her family to the greed of a corrupt criminal syndicate, she survived by stealing food and sleeping wherever she could.

An aging master thief eventually discovered her remarkable agility and taught her everything he knew—stealth, infiltration, escape artistry, and the unwritten rules of professional thieves.

Years later, Eiko became known across Tokyo as the mysterious "Black Cat," a phantom burglar capable of infiltrating supposedly impenetrable vaults without leaving a trace. While the media labels her a criminal, many of her victims are corrupt executives, crime bosses, and black-market organizations.

She secretly donates much of what she steals to charities and victims of the very people she robs.

Despite her playful demeanor, she struggles to trust others completely. Every smile hides years of betrayal and loneliness.