Gantz Omnibus Graphic Novel Volume 01 (Mature)

Tokyo teens Kei and Masaru are killed by a subway train but awaken in a room with an ominous black orb that gives them weapons, suits . . . and orders. Fighting bizarre alien monstrosities in a deadly game, will they win their freedom or die for the final time? Over 600 story pages. Collecting Gantz vols, 1-3.