Shion Izumi

He was a psychotic yet powerful teenager who participated in the game and won his freedom before the series's events. He desired to return to the game and used a SMG and a pistol to rampage through Shinjuku, killing Hiroto Sakurai, Kenzo Sakata, and Daizaemon Kaze, and either injuring or killing 387 bystanders in broad daylight. He thus not only brought Gantz new participants but also himself because he was killed by Kurono in a standoff. He is an incredible swordsman and was the first to use the Gantz Saber, a katana with a retractable blade that was hidden in one of the apartment's rooms. He