Betrayed Detective: Karen Yuzuriha's Dangerous Pursuit

A determined female investigator named Karen Yuzuriha launches a high-stakes mission after her younger brother vanishes following his involvement with a trendy new drug. As an agent for the Investigation Bureau (Cục Điều Tra), Karen vows to uncover his whereabouts at any cost. Acting on intelligence about a major drug trafficking operation—despite her superiors' warnings—she storms the scene. Utilizing her sharp skills and combat prowess in the field, Karen quickly eliminates the criminals and apprehends the ringleader. However, this man is merely a lieutenant serving a powerful boss who forces him into cooperation. Eager to secure his freedom from the syndicate's clutches, he proposes an alliance. Karen agrees to infiltrate their inner circle by posing as a nurse until she finally locates her missing brother—who is being kept as an 'entertainment pet' for the ruthless boss. Just when triumph seems certain, fate delivers a brutal twist! The lieutenant betrays Karen, shooting and killing the main boss to seize control of the organization himself. Now, Karen finds herself trapped in a terrifying scenario: she has become one of his unwilling test subjects for experimental drugs. Witness Karen’s desperate fight for survival against betrayal and captivity in this intense thriller featuring stunning Japanese action.