Mayu Yori a girl from a secluded village, who finds herself in the Capital of the Empire. Unlike most who seek fame and fortune. Mayu is in search of something else, her brother's killer. She will stop at nothing to find the one responsible, even if it means tracking down one of the most dangerous groups in the Capital, Night Raid. Join Mayu as she discovers the cruelty of the Capital, the purpose of Night Raid, and the truth of her brother's death.