 In North America , the series is published in English by Kodansha Comics USA . They published the first volume on June 19 , 2012 , . The fifteenth was released on April 7 , 2015 . By July 2015 , the manga had 2 @.@ 5 million copies in circulation in North America . The first three spin @-@ off manga have also been licensed by Kodansha Comics USA , who published the first volume of each between March and June 2014 . It announced its license to Spoof on Titan at the New York Comic Con in October 2015 , and its acquisition of Lost Girls in March 2016 . 
