Kagami Emi, the beautiful daughter of a high-ranking official in a detective organization, is an investigator determined to expose a shadowy criminal group. Frustrated by the lack of progress in the investigation, she disregards protocol and launches a solo mission. Her raid on the enemy hideout fails, leaving her captured, brutally assaulted, and bound by the wrists. Unable to endure the merciless torment, she breaks down in bitter tears. Her intense emotions and suffering deepen the narrative's psychological tension.