Young Gun Carnaval  The novels were published by Tokuma Shoten under their Tokuma Novels EDGE imprint. The chapters focus on Kogure and Yumika and their interactions with the high school students of Kouenzi High, their comrades and superiors as operatives of Hybrid and the memories they had of their past prior to their recruitment into the organization. It was then adapted into different media, which consists of a completed manga series and a Drama CD series. Kogura Jinpachi is a manga research club member in Kouenzi High School, whose parents were killed when he was a kid by assassins from the Phoenix Syndicate. Yumika Tetsuyoshi grew up outside Japan under the care of her mercenary mother, Seika Tetsuyoshi. These two are seen in the public as high school students. Though in reality they are members of Hybrid, an underground vigilante-type organization whose duty is to hunt and punish criminals who can't be judged by the law. Later on, the Korean National Police Agency joins in with Hybrid to hunt down an ex-Russian OMON officer turned assassin, who is linked to the various Japanese criminal syndicates including the Phoenix Syndicate, by dispatching a SWAT officer named Che Mina, who acts as liaison officer between the two organizations. A manga version has been serialized by Flex Comix under the "Flex Comix Next" magazine label. Four Drama CDs were released by Frontier Works for ¥3,150 with the first CD released on October 24, 2007, titled "Vertigo High School". The second CD was released on December 21, 2007, titled "Blood Diamond Princess". The third CD was released on February 22, 2008, titled "Family Business". The fourth and final CD was released on April 23, 2008, titled "Girlfight".