Sex hormone expert Ueda successfully developed the groundbreaking hormone amplification agent, "forvitin UD," but an accident occurred during the final clinical trial. A large amount of "forvitin UD" was administered into the subject's body, causing him to be transported to the emergency room. Natsumi, a research doctor who was involved in the clinical trial as Ueda's assistant due to the secret project, was extremely upset when she saw the subject's face red and convulsing...