第13話: 爆発を生き延びたケイは室戸と対峙し、列車の幻視を経て人生を選ぶ

13

Kei survives the explosion and leaves to find whoever is left. Muroto shoots Kanda and faces off Kei for a final battle, in which Muroto's past is revealed as one of abuse. Instead of killing him, Kei tranporsts him out of the area, and gets a vision of the train station where he and Katou died. The train speeds towards him while his recently deceased friends cheer him on. He tries to outrun it like before, but stops and realizes he is being given a choice; he chooses to live. He turns around, points a finger in the shape of a gun at the train and shouts "Bang!". Gantz disappears, and it is unknown whether Kei lives or not. After the credits, we see a train speeding through the empty station, with no-one in sight. (Source: Wikipedia)