Rat in the orphanage was troubled because a magical carriage often flew in his dreams, and what surprised him even more was that this carriage also broke into Sini's dreams. However, Latte was more concerned about the city opposite, because he felt that there were ulterior secrets in it. Latte seemed to see the shadow of that city in a book called "The Puppet Emperor", so he decided to find the mystery. At this time, something unexpected happened. The carriage in the dream finally appeared in front of him one day...