Young Ace
The manga was written and drawn by Yuuki Kodama and serialized in "Young Ace" from September 4, 2009 to September 3, 2016 and compiled in 17 volumes. The series was later licensed for distribution in English by Yen Press, alongside its spinoff Bloody Brat. and released as an omnibus edition where each volume contains two of the Japanese volumes of the series, except for the final omnibus edition (volume 9) which contains the final manga volume.