Gantz G Volume 2 — Hiroya Oku

A spin-off side tale set in the epic Gantz science-fiction universe that has spawned anime, live-action films, and video games, Gantz G is exciting, frightening, and shocking, an adult manga series of stunning craft and savage imagination.

After their disastrous first mission, the surviving Gantz teammates are determined to train hard to ensure gaining enough game points to resurrect the shy Naiki. But the teen team members are sorely tempted to use the powerful Gantz suits for their own purposes--and desires for revenge!