After divorcing the Joker, Harley Quinn joins the Black Canary superheroes, Huntress and Renee Montoya to save the young girl from the evil god. Director: Author Cathy Yan: Christina Hodson, Paul Early (created by Harley Quinn) | The story is told by Harley Quinn himself as the villain of Gotham, Zion of Rome, and Zsasz's passionate hand, targeting a young girl named Cass, who is looking for her. The streets of Harley, Huntress, Black Canary and Renee Montoya collided and four people had no choice but to join the Roman army.