Gantz, Volume 31 — Hiroya Oku

As the world burns, the Tokyo Gantz team manage to find their Gantz orb and use it to communicate with fellow warriors from across the globe in order to recruit them for a last-ditch assault to free the humans imprisoned on the leviathan alien mothership. And while the orb can still create powerful weapons and teleport the Gantz fighters, it informs them that it no longer has the power to heal or regenerate them. If they die on this mission, they stay dead! Hiroya Oku's Gantz is adult manga at its most challenging: violent, bizarre, erotic, and created with stunning craft and fierce imagination.