Question: Batman: Streets of Gotham ties into what American comic book series Batman: Streets of Gotham
Context: Batman: The Dark Knight was an American comic book ongoing series, written and penciled by David Finch and featuring Batman.  One of two new ongoing titles to feature Bruce Wayne after the "" storyline, "The Dark Knight" depicts Bruce Wayne's life in Gotham City following his new global commitment to the newly established "Batman Incorporated".  In Finch's words, "The stories I'm telling are all about relationships and connections he has in Gotham City that he can't walk away from." Batman: Streets of Gotham is an American comic book written by Paul Dini, with art by Dustin Nguyen.  The series stars Dick Grayson as the new Batman and ties into Grant Morrison's overarching "" story and the new "Gotham City Sirens" monthly.  The series ran for 21 issues, from 2009 to 2011. Gotham City Sirens is an American comic book series was written by Paul Dini with art by Guillem March and published by DC Comics.  The term "Gotham City Sirens" refers to three of the most popular female villains that inhabit Gotham City, which are Catwoman, Harley Quinn, and Poison Ivy. Batman: Gotham County Line is a three-issue American comic book limited series written by Steve Niles, known for his series "30 Days of Night", and illustrated by Scott Hampton.  It follows Batman as a series of ritual murders outside Gotham City leads him into a macabre supernatural realm. Bat-Manga! : The Secret History of Batman in Japan is a 2008 book published by Pantheon Books, subsidiary of Random House, in the United States.  The book was designed by Chip Kidd with the assistance of photographer Geoff Spear.  It collects a Japanese "shōnen" manga adaptation of the American comic book series "Batman" by Jiro Kuwata simply entitled "Batman" (バットマン , Battoman ) and also includes photographs of vintage Batman toys from Japan.  The "Batman" manga included in "Bat-Manga!"  was created during a Batman craze in Japan, being serialized from April 1966 to May 1967; the series ended when the craze ended.  The manga was released in paperback and at the same time a limited hardcover was released on October 28, 2008, with an additional manhua bootleg and an extra Batman story by the creator.  On October 28, 2013, the entire 53 chapter run of the series was released in Japan as a three volume-box set. Batman: Gotham Knights was a monthly American comic book series published by DC Comics.  The original intent of this book was to feature the exploits of Batman and his extended family, such as Alfred Pennyworth, Batgirl, Nightwing, Robin, Oracle, and Catwoman, among others.  The latter section of the run, however, came to focus much more upon his enemies. Gotham City ( ), or simply Gotham, is a fictional city appearing in American comic books published by DC Comics, best known as the home of Batman.  Gotham City was first identified as Batman's place of residence in "Batman" #4 (Dec. 1940) and has since been the setting of most stories featuring the character. Batman: Dark Victory is a 14-part American comic book limited series (including a #0 issue) published by DC Comics, featuring the superhero Batman.  The series, which ran from 1999 until 2000, was written by Jeph Loeb and drawn by Tim Sale, and it serves as a sequel to "".  "Batman: Dark Victory" takes place primarily three to four years into Batman's career as a vigilante crimefighter.  The plot centers on a series of murders involving Gotham City police officers by a mysterious serial killer only known as the Hangman.  Central to the storyline is a territory war between Two-Face and the remnants of the Falcone mob, led by Sofia Falcone. Batman Incorporated (also known as Batman, Inc.) is an American comic book series published by DC Comics, featuring the superhero Batman.  Written by Grant Morrison, the series debuts following the events of "Batman R.I.P", "Final Crisis", "Batman and Robin", and "" where, after being stranded in the distant past and believed dead, Bruce Wayne has returned to the present day DC Universe.  Now, he is prepared to take his war on crime to the next level, by essentially "franchising" it and drafting, training and commanding a global team of heroes who will answer to Batman himself called Batman Incorporated. Gotham Academy is an ongoing comic book series published by DC Comics.  The series takes place in the DC Universe's Batman mythos and follows Olive Silverlock, a teenage girl, and her friends as they encounter the mysteries and threats of Gotham's most prestigious prep school, Gotham Academy which happens to be just across the road from the Arkham Asylum.  The series is meant to be a teen drama as well as spooky and dark.
Answer: Gotham City Sirens