The protagonist, Romasha, is a member of the Highlanders, a defense organization organized in the upper city of Solitaire. Beautiful and with excellent grades, she is out of reach for the male members and some of them harbor sinister desires. Due to certain circumstances, she has no combat experience, but…

A world where demons and humans coexist. Demons and humans are in conflict, and an organization called the Anti-Demon Warriors stands against them. S-class anti-demon warriors Mizuki, Cecilia, and Rekka learn that Mizuki’s daughter, Akari, has been captured by demons after failing their mission to infiltrate a demon slave brothel….