Gantz

One moment, Kei Kurono is a typical, self-absorbed high schooler; the next, he's dead, struck by a train while attempting a selfless act. But death is only the beginning of his nightmare. Revived in a mysterious room alongside other recently deceased strangers, Kei finds himself conscripted into a deadly game by a cryptic black orb known only as Gantz. Their mission: hunt and kill grotesque aliens hidden among the populace, armed with advanced weaponry and futuristic suits, or face permanent oblivion. Plunged into a brutal cycle of combat, survival, and shocking revelations, Kei and his reluctant teammates must confront not only terrifying extraterrestrial threats but also the darkest aspects of humanity. As the stakes escalate with each gruesome encounter, the line between hunter and hunted blurs, forcing them to question the true nature of their existence and the morality of their desperate fight for a second chance.

✦ AI-drafted summary