The second volume of the Gantz Reboot Sōshū-hen manga omnibus shipped last week with a bonus — a Hatsune Miku variant cover. Gantz Reboot Sōshū-hen is a special edition of Hiroya Oku's original science-fiction action manga that combines five volumes worth of story in each volume. The second 1,000-page Gantz Reboot Sōshū-hen volume includes a "Gantz 3.9" cover with Hatsune Miku, as drawn by Shūkan Hajimete no Hatsune Miku artist Kentarō Hayashi. ("3.9" is a wordplay on how "39" can be pronounced in Japanese as "Miku.").