After Yuga successfully installs the Rush Duel program into the Goha Corporation's system, Luke insists on keeping it a secret to avoid detection, while Yuga wants everyone to enjoy his invention. They settle their dispute with a duel, which also introduces Luke's mysterious "Pauli effect" that can temporarily disable nearby electronics.
In Episode 2 of , titled " The Future King of Duels " (or "The Man Who Possesses a Demon" in Japan), Yuga Ohdo and Lucidien "Luke" Kallister engage in a Rush Duel to decide if this new dueling style should be kept secret or shared with the world. Episode Summary Yuв†Giв†Oh!: Sevens Episode 2
The Best Friend is Relevant! Yugioh Sevens Episode 2 Reactions After Yuga successfully installs the Rush Duel program