Gantz Wiki
Gantz Wiki

Makoto Sekine (関根 誠人, Sekine Makoto) is from Kyoto, he responded to Kurono's and Reika's call, to join the Tokyo team and fight against the invading aliens. He speaks very good English. He was killed after being infected by an alien spore that mutated his entire body. Kurono ended up putting him out of his misery by killing him with the Z-Gun.