Battle Between Buddies: Part 1.Shay reveals that his goal was to lure Declan out to use as a bargaining chip to rescue Lulu, who was allegedly captured by his father, Leo. Declan believes his father would not care about him in such an event and gives Shay a condition to fulfill before he can duel against him. The next day, Yuya prepares to face his fourth and final opponent, who turns out to be Gong, in an all-or-nothing duel for championship entry without any of his supporters. As Yuya struggles to go all out against his best friend, Gong uses what he learned from Kit to summon the Synchro monster, Superheavy Samurai Warlord Susanowo.