[Machine Translation] The Grand Duchy of Noblen is made up of the four dukedoms of Water, Fire, Wind, and Earth. Invited as a member of the Lionel Kingdom's delegation to the "Grand Duke Selection Ceremony," an important ceremony to decide the next Grand Duke who will represent the four dukes, the Marchioness Wermie Olmirage enjoys chatting with dignitaries from various countries at a hospitality party. However, during the party, an assassination attempt is made on Aedes, the guest of honor. The news that the current Grand Duke has been murdered comes in rapid succession, causing panic in the hall, and the murderer takes advantage of the chaos to disappear. In the assassination of the Grand Duke and the attempted assassination of the Marquis de l'Ormirage, the suspect seen was a "woman with vermilion eyes. There is only one person in this venue that corresponds to the suspect. Even though she is in a tight spot, she is determined to do what she is proud of. And the "nobody" Wermy's choice will bring the best to the world.