GANTZ 〜the first stage〜

The story unfolds in the mysterious world of "GANTZ." The protagonist, high school student Kei Kurono, and his friend Masaru Kato die together while attempting to save someone. However, their journey does not end there. In the moment of death, they are transported to a strange, sealed room where the Tokyo Tower is visible through the window, yet escape is impossible. Inside, they encounter many others who should have died—including thugs, beautiful women, office workers, and politicians. Have they truly been reborn? It seems not. A black sphere in the center of the room suddenly lights up and issues commands. This bizarre orb grants them new life, but at the cost of completing missions to kill monsters. Thus, they begin their brutal survival game on a merciless battlefield.