TITLE:"The Last Human: Z-ONE" is the one-hundred-and-forty-sixth episode of Yu-Gi-Oh! 5D's.
DESCRIPTION: The members of Team 5D's receive a shock upon discovering that the "Antinomy" Yusei fought against was in fact Bruno. Despite the group suffering as a result, they continue deeper into the Ark Cradle in order to confront its final resident - Z-one, until Aporia - who was thought to have been defeated - reappears. In an effort to remind Z-one of hope, Aporia initiates a duel with him. However, the strategy with which Z-one responds to Aporia - who summons Machine Emperor Grannel from the offset and commences a relentless attack - exceeds anything Yusei could have possibly imagined.