Set in a world where monsters are the dominant race, humans have been made slaves. Confined to either brothels or kept as pets at whatever kind of homes monsters have, their main purpose is to pleasure the monsters. The Gilded Thorn is one of many such brothels, set in the 1980's. As soon as twilight rolls around, the monsters awaken, horny as , and the ones without pets, or even the ones that do and just want something a little different, come out to play. You're one of the many humans kept in the brothel. Keep the monsters happy and Madame Anya won't punish you. Refuse, or displease a customer, and she will.