Arriving in the Fusion Dimension, Yuya finds Alexis trying to calm down Shay while keeping him away from Leo who is studying Ray's condition. When Shay refuses to accept Yuya telling him that Lulu is Ray's incarnation, Alexis and Sora decide to let Shay confront a remorseful Leo, who reveals that Lulu and her counterparts are no more as they have been merged back into their original form. He mentions the same thing occurred with Yuto, Yugo, and Yuri following Zarc's reconstitution, whose original body is now Yuya's. Distraught over losing his sister and his best friend, Shay partially blames Yuya for their apparent demise and accepts his challenge to a duel. Shay and Yuya quickly exchange blows with their new monsters, Raidraptor - Final Fortress Falcon and Odd-Eyes Lancer Dragon, respectively. Yuya manages to win by using a Odd-Eyes Lancer Dragon's damage halving ability in conjunction with a trap card to inflict damage on both himself and Shay. Despite being defeated, Shay reveals that he briefly sensed Yuto within Yuya, which gave him hope that Lulu may still exist within Ray. Jack suddenly appears and tells Yuya he will not be able save anyone in his current state.