If correct, Yen Press will be delivering the
BTOOOM! series on a 3 month/volume release schedule.
BTOOOM!, volume 3 [8/20/13] (Yen Press)
Amazon.jp
BTOOOM!, volume 4 [11/19/13] (Yen Press)
Amazon.jp
BTOOOM!, volume 5 [2/25/14] (Yen Press)
Amazon.jp
BTOOOM!, volume 6 [5/20/14] (Yen Press)
Amazon.jp
BTOOOM!, volume 7 [8/19/14] (Yen Press)
Amazon.jp