Kei Kurono

Kei Kurono (玄野 計, Kurono Kei) is the main protagonist of Phase 1. Kei is 10th grader who is summoned by Gantz, along with Masaru Kato, after being hit by a subway train in an effort to help a hobo who passes out on the tracks. In the beginning, he is a rather selfish character who often ended up being the reluctant hero. However, after seeing Masaru sacrificing his life trying to save him in his third mission, Kei starts taking care of other people as well, and he starts to avoid casualties amongst Gantz team members. His immense skill (equaled only by Shion Izumi) and his steady leadership quickly make him a hero to most of the other members. During missions, Kei often uses unconventional tactics to great effect. After reviving some of his former friends, Kei leaves the game due to a request from his comrades. His memories of the Gantz "missions" are supposedly erased, but he begins to remember them through hints and traces of his former life. The vampires group searches and eventually finds Kei, killing him despite him putting up a brave fight and taking many casualties in the process. However, during Phase 2 Kato becomes dedicated to revive him. After Nurarihyon is killed, he is revived by Masaru Kato but remembers nothing beyond his choice to leave after the Oni Mission. In chapter 281 he encountered his own apartment closed by the police because of the incident that he was killed by the vampires and then he walked away. Then he finds Tae Kojima and gives her a hug and confessed his longing for her. He returns to his daily life in chapter 282, puzzled about the current events in Gantz. He meets his childhood crush Natsu Harada and his childhood bully Ryou Ikegami, who in-turn explains his superiority over Kurono, which leads him to an angered state. He, however, after provoking from Ryou, begins to calm himself down and leaves. Voiced by: Daisuke Namikawa (Japanese), Christopher Ayres (English)

Source: Wikipedia