The Book of Legends takes place in a world that is increasingly being dominated by thieves, rogues, and bandits, leading to the awakening of Azutura, a demon who feeds on peoples' fears. The best alchemists in the realm are able to discover and craft a temporary solution in the form of a relic whose vapors will put the demon into a deep sleep for a few decades, which will hopefully be enough time to deal with the world's problems.