More new artificial fairies malfunction, and suspicion grows that someone with military connections is sabotaging them. Sweetie brokers a deal with Dorothea in an effort to acquire the piece of the Black Fairy Tome that was recently sold at auction.

As a reward for saving the prime minister's life, the Duke of Hybranz asks for one of the seven Fairy Weapons. As Dorothea transports this powerful weapon to his duchy, the big question on everyone's mind is what he intends to do with it.