One ordinary evening, Kenoji, a college student, reunites with Katsu Kato, his friend from junior high school, at a train station. In order to rescue a man who had fallen off the rails, the two of them were hit hard by the tram. However, in the blink of an eye, they came to a closed room unscathed. There are seven other men here as well as a huge black orb.
According to Black Ball's instructions, this group of people need to put on battle uniforms and pick up weapons to assassinate the "Scallion Star People". If you successfully hit the "star man" and survive to return to the room, GANTZ will give points according to each person's performance, and if you get 100 points in total, you will have the opportunity to be resurrected and return to the original world. Some go into the killing game for the bonus, others are ruthless to survive. At the juncture of life and death, the cowardly Xuan Yeji and the kind-hearted Kato Sheng also had to be involved.
In the brutal killing, Genno became stronger and stronger in order to win, while Kato hated the world dominated by violence and denied fighting
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