Yu-Gi-Oh! Zexal

Season 1, Episode 20

Episode Title: Roots of the Problem

Air Date: 2011-08-22

Overview:

Yuma safely recovers "Number 96: Black Mist" from a man. Tetsuo, who witnessed the Duel, takes note that Yuma seems suddenly more brutal in his strategy, and ends up in a fight with him. Not having reconciled in over 2 days, suddenly Number 96 swallows Yuma and Astral up!! To rescue Yuma and Astral from Number 96, Tetsuo fights the Numbers for the first time!