[Machine Translation] Rust, a seventeen-year-old girl, is just starting out as a mercenary by profession. She chose this path to earn money for her ailing mother's medical expenses. In a world where men of great strength and prowess are the order of the day, a series of challenges await her, but Rust never gives in. But Rusto will not give in - she will seize a new life with her special skills of "Seijutsu" in her hands! The story of a girl mercenary and her friends, a story of growth and warfare, begins here! Winner of the 2nd Ichijisan Shobo Web Novel Award Gold Prize.