Three years ago, the skilled assassin Tide turned against her own organization after refusing to complete a deadly assignment. Forced to disappear, she abandoned her former identity and began a quiet new life under the name Minghui in a small town, where she runs a modest coffee shop while caring for her blind sister, Mingzhu. For a time, the sisters manage to live peacefully away from the violence of the past. However, an unexpected accident exposes their location and alerts Tide’s former allies to her survival. Soon, they launch a relentless hunt and Mingzhu becomes caught in the middle of their dangerous pursuit. With her sister’s life at risk, Chao Xi has no choice but to return to the violent world she escaped from. As gunfire erupts and old enemies close in, her carefully hidden identity begins to unravel, forcing her to confront the organization and the deadly past she tried so hard to leave behind.