Gantz 2nd Stage  

Gantz: Second Stage, Gantz *uncut*

Kei and Masaru, two former classmates, have survived two trials set forth by an unknown black sphere known as Gantz. These trials involve exploding body parts, fighting to stay alive until the last second, and witnessing their friends' gruesome deaths. They are now aware that Gantz can call them back at any time for another encounter with extraterrestrial beings. Will Masaru's experiences in the Gantz world translate into increased courage in real life? With fellow veteran Kishimoto staying at Kurono's home as his "adopted pet," can Kurono resist his growing attraction to her breasts? What exactly is Gantz?

Due to the ongoing serialization of the manga during the anime's production, Gantz 2nd Stage diverts from the manga's plotline midway and features an original ending.