Ep. 58: Espa Roba — The ESP Duelist, Part 1

58

After beating Ryuuzaki and taking his rare card, Esper Roba sets his sights on Jonouchi, knowing he was the runner-up in Duelist Kingdom. After quickly finding out that Roba was cheating, with his younger siblings looking at his opponent's cards from afar, out of respect for their brother who always protects them. Mokuba, having been in a similar situation, is convinced to let the duel continue as long as they stop cheating. He stands by to be sure they don't start doing it again. (source: Yu-Gi-Oh! Wikia, modified)