TITLE:"The Pitch-Black Number: Dark Yuma vs Tetsuo" is the twentieth episode of the Yu-Gi-Oh! ZEXAL anime. It first aired in Japan on August 22, 2011.
DESCRIPTION:Yuma safely recovers "Number 96: Black Mist" from a man. When The Emperor's Key is knocked from Yuma's neck by Tetsuo, "Black Mist" is able to possess Astral. Before he is completely taken over, Astral has Yuma entrust "Number 39: Utopia" to Tetsuo. Number 96 manipulates Yuma as a puppet to Duel Tetsuo.