Packaged alongside the 5th volume of the Kekkai Sensen: Back 2 Back manga, The OVA will run for 24 minutes and bring to life two distinct tales. The initial story, 'Zapp Renfro Inga Oohou-juu!!,' draws from a chapter in volume four, whereas the second story, 'Bakkaadio no Shizuku,' derives from a chapter in volume two.