The world of vampires is a completely class-based society. Dali Delico, a high-ranking aristocrat, receives a letter from an unknown sender. The letter invites Dali to visit an old hotel, where he is welcomed by the manager Munch Milan and his employees. The hotel is “Marionette Hotel”, where the Initiatives of all the employees and guests have been taken control by someone else. In the hotel are Jo Verachicca, the younger sister of Dali’s ex-fiancée Frieda, and her younger brother Ego Verachicca; Monet Stanfield, a former subordinate of Dali’s late father Claude; Francesca Fra, the younger sister of Dali’s old friend Gerhard; and other vampires with connections to the prestigious Delico family. Dali and his company try to uncover the secret. Who is “The Puppeteer”, the mastermind behind this situation? Why was Dali led to Marionette Hotel? As Dali tries to uncover the secret, a past connection reveals itself.