Rei, known as the Angel of Death, is a lethal assassin entrenched in Hong Kong’s underworld. Orphaned after mafia boss John Roy murdered her parents and sexually assaulted her brother, she was coerced into serving Roy while secretly plotting vengeance. Her existence is marked by a fractured identity as a hermaphrodite, her struggle for self-acceptance shadowed by the trauma of her past.

A master of marksmanship and covert killings, Rei executes targets with silent precision or calculated long-range strikes. Her tactical brilliance clashes with inner turmoil—haunted by unresolved grief and the psychological torment of aiding her family’s killer. A cross-shaped scar carved into her back during her brother’s violation stands as a visceral emblem of her anguish, stoking her relentless hunger for retribution.

Rei’s strategy hinges on patience: she meticulously awaits Roy’s moment of weakness to strike. Her drive for vengeance intertwines with a yearning for liberation, though she questions whether destroying Roy will free her or bind her deeper to violence. The unresolved arc of her journey leaves her poised between reclaiming autonomy and remaining a pawn of vengeance, her fate entangled with themes of identity, justice, and the search for meaning beyond bloodshed.