Undercover agent Yumi, clad in a tight-fitting dress, personally closes in on men suspected of belonging to criminal organizations, using her body as her weapon. Her intense interrogations systematically break down each suspect, with some men unable to endure the pressure and ultimately collapsing from exhaustion. Yumi's passionate investigative style continues relentlessly against each new suspect, as she uses her own body to question them one by one, drawing ever closer to the truth.