Recently, a type of drug has become very popular among young people, and Karen's younger brother has also been using this type of drug. Not long after, he disappeared, causing Karen to worry. As an investigator for the Investigation Bureau, Karen is determined to obtain information about her brother at all costs! Upon receiving intelligence about the activities of the group, Karen quickly arrived at the scene despite her superiors' disapproval. With her skills, she quickly killed all the criminals and captured the ringleader. However, he was just a henchman of the boss, forced to do this work.PRED-391 The Female Investigator Betrayed - Karen Yuzuriha He wanted to cooperate with her to leave the organization. Karen agreed and pretended to be a nurse to approach the boss. In the end, she discovered that her brother was being used as a "pet" for the boss's "entertainment". Thinking she would capture the boss and rescue her brother, but no! Karen was betrayed by the boss's henchman, who shot the boss to take over the organization, and Karen became his test subject for drugs...
