Synopsis

The story follows Nagase Aya (Takeda Rena), a former member of the elite Special Assault Team (SAT) who now lives a peaceful life as a housewife with her husband and six-year-old daughter.

One day, her former junior colleague Sakura reaches out with a desperate request: to help search for her younger brother, Hayato (Ryuto), who has suddenly gone missing. Aya agrees to assist, but only during the late-night hours while her daughter is asleep – vowing to return home by 6 a.m.

As the investigation unfolds, Aya uncovers evidence that Hayato may have become entangled in a serious crime. What begins as a simple favor soon escalates, as Aya is drawn into a fierce and dangerous battle against a powerful criminal organization.