Nana the Queen is renowned as a beautiful and highly skilled dominatrix, known as the "Thoroughbred Queen" due to her mother's legendary status in the world of domination. She runs the elite queen dispatch club "Excellent," and her prowess is widely recognized throughout the industry. However, a crisis unfolds when Yozakura, one of her club's staff members, is forced into debt by yakuza and taken away to work at a delivery health service. Upon learning this, Queen Nana boldly vows to rescue Yozakura. The yakuza mock her determination and challenge her pride by proposing a brutal game—a grueling sex game designed to push her body and mind beyond their limits, testing the true extent of a queen's power.