During the Victorian period, the most prosperous period in Great Britain, due to a bizarre incident of a woman falling from a building, the young and transparent Major Augustine Gordon got a chance to be promoted and became the captain of the escort of the young Duke Constantine Seeley, who was regarded as the legend of England. Because of this case, people gathered together, and during the investigation, Augustine discovered that the Duke was not a simple human being... This knowledge broke his previous thinking as an atheist, and opened the door to a different world. The major has started a new life, but he still insists on the suppressed beliefs in his heart...