Yusei, Bruno and Sherry sneak into the "Momentum Express" company who is in contact with Yliaster. Though these three are looking for information on Yliaster, it isn't easy to find and the only place left is the Matter Transport Device "Infinity". Causing Yusei to sneak into the room of the company's President, Clark, to find the key that allows access to that area. Once the key is found, Sherry and Bruno access Infinity. But to buy time for them to look into it, Yusei requests a duel against Clark. However, Clark proposes a condition on the Duel: "A Concentration Duel" with such an unexpected trap set in place in the Duel...