Changes

When Leo opened his eyes next, he found himself flung back in time in the newly formed [[Standard Dimension]] where no [[Solid Vision|Real Solid Vision]] nor Fusion, XYZ, nor Synchro summons existed. Suffering from partial amnesia and unable to remember who he was, Leo still retained his research skills, so he made his living by conducting experiments on the standard [[KC mass production Disk|KaibaCorp Duel Disk]], upgrading the incorporeal Solid Vision into Real Solid Visionas it once was in the Original Dimension. Around this time, he met Yusho and created [[Leo Institute of Dueling]], together introducing [[Action Duel]]s to Standard. Later, Leo then started to remember about his memories of the future, but was unable to guess why, so he created a machine that searched and visualized his future memories, making him realize that Ray was still alive, split within the four dimensions.

Declan interrupts and relays elaborates with his view of the storyat that time, that Leo was so immersed in his incomprehensible research that causing [[Henrietta Akaba|his mother]] changedto become erratic, and Declan, hoping to bring peace relief to his mother, wandered into Leo's lab and was transferred to the Fusion Dimension on [[Duel Academy (ARC-V)|Duel AcademyAcademia]].

Leo continues that when on Duel Academy, searching for Ray, he instead found instead [[Celina]], who resembled Ray in her childhood, but found no traces of Ray's memories in her. In his investigation, he concluded that Ray and Zarc must have been split into four and were reborn in separate four dimensions as [[Zuzu Boyle]], Celina, [[Lulu Obsidian]], [[Rin]], Yuya, [[Yuto]], [[Yugo]], and [[Yuri]] respectively. Leo reveals the secret chamber behind him containing the carded people from different dimensions from the [[Arc Area Project]] and his intention to use their natural energy as a catalyst in the machine [[Fusion Dimension Machine|ARC-V]] that will refuse the separated Dimensions back into the [[Original Dimension]] as well as reviving Ray by fusing her dimensional counterparts as well, thus fulfilling Revival Zero's goal.

Having finished explaining his motives to Declan, Yusho, Riley, Yuya and Ray's Dimensional counterparts, Leo tells Declan to join him and defeat Yuya immediately, as the fusing of the Four Dimensions will not just result in Ray's fused revival, but Zarc's revival as well, opening the possibility that the Supreme Dragon King may be reborn and the only way to stop the undefeated Zarc for good is through a Duel. However, Declan rejects his father, stating that he has seen Yuya's true nature in his [[Dueltainer|DueltainingEntertainment Duels]] which have brought genuine happiness to the people of different dimensions, and that as the founder of [[Lancers]], it is his and Yuya's shared duty to take down stop Leo's ambitions. The three activate their [[Duel Disk]]s and the Action Field starts up.