Armored Knight Iris 2

Based on the video game by Black Lilith, People began to migrate to space, and the space federal government, which was comprised of a variety of species, including humans, was in charge of maintaining public order and security. The main character, Iris, and her companion, Mei Ling, are ace pilots with the 101 special unit of the federal army's Special Support Forces (SSF). During one of the skirmishes, Iris is caught and carried to the whorehouse in Mirion, a city controlled by the opposing army. She is compelled to wear a devil's collar around her neck, which explodes if she tries to flee.