Associate Professor Ueda, an expert in sex hormones, has succeeded in developing a groundbreaking hormone-enhancing drug, Horbitin UD, but an accident occurs during the final clinical trial. A large amount of "horbitin UD" was administered to the subject's body, and he was transported to the emergency room. Natsumi, a researcher who was involved in the clinical trial as Ueda's assistant without being informed of the details for a top-secret project, was terribly shaken when she saw her face blushing and convulsing.
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