玄野计（浪川大辅 配音）和加藤胜（大里雅史 配音）是小学时代的好友，在一日的偶遇之后，两人为救一只铁轨上的流浪汉而同时命丧黄泉。然而等待着他们的并非虚无，当玄野计睁开眼时，映入他眼帘的居然是一间闻所未闻的高级公寓，他的周围聚集着和他一样迷惘的，互不相识的“死者”们。“你 们的生命已经完结，如何使用你们新的生命，是我的自由”，一个位于房间中央，名叫“GANTZ”的黑色圆球传达了这样的指示。 为了活命，他们被迫的参与了各种各样的与外星怪物之间的残酷战斗，每场战斗结束之后，“死者”们会根据在战斗中的表现而得到相应的分数，利用这些分数，“死者”们可以选择实现愿望或是换取强力武器参加下一场战斗，而分数为0的人们，他们面临的，则是可怕的惩罚。“GANTZ”到底是什么？是谁控制着这场血腥的游戏？真的能够复活吗？想要解开这种种疑问，玄野计只有一种选择，那就是战斗到底。
Professor Charles Francis Xavier, who has the mutant ability to read minds, searches for new mutants to train them how to use their powers for good and to prevent the mutants from harming themselves and others at his School for Gifted Youngsters. His opposition, Magneto "Master of Magnetism", is doing the same thing, but for evil purposes. He has made Mystique who is a shape-shifter, a principle of his high school to gather evil mutants to prepare them for war against non-mutants. The most interesting plot of the story is that all the heroes and villains attend the same high school. The classic battle of good vs. evil has begun again.
林亦意外得到选择系统，本以为会一飞冲天，谁知系统绑定出错，于是他不得不开启了一种另类的修炼模式。因为选择系统的特殊原因，林亦必须时刻面临得到与舍弃的抉择，并且在真挚的友情、爱情、亲情，和实力的快速提升之间做出正确的选择
