Training Days, Part 1 Yu-Gi-Oh! Zexal : Season 1 Episode 15

Having clearly seen Kaito's power, and how utterly hopeless they are, Yuma and Astral are keenly aware that they cannot easily recover. At that time, Yuma talks to his grandmother. She mentions a mysterious old man named Jurou at a "Duel Lodge" who owns a wooden statue of the Legendary Monster "Dark Magician", who is waiting for Yuma and his crew. Yuma makes a strong wish based on his desire to train and get better!