KILLJOY FANFICTION: Roxy is girl who lives with her sister, Vendetta, in Battery City. When she was young her mother was taken by Better Living Industries and since then she has hated them. On the day of her 13th birthday, while in the city she sees the signs they post often around town. Extermination signs. Normally these wouldn't catch the attention of a girl her age but these particular ones do. The Killjoys. Jet Star, Kobra Kid, Fun Ghoul and Party Poison.