As the fight between Gao and Shosetsu continues, the latter slowly becomes more corrupted from using the Dark Core. Shosetsu tries to use the item card - Sword of the King, Excalibur - but the sword rejects him. Angry, Shosetsu uses the Dark Core to bring his card effects into reality and starts attacking others. The buddy monsters of Gao's friends try to stop Shosetsu, but they are all struck down. Shosetsu then attacks Rouga, who stops his assault with a card effect brought into reality. This makes Gao realize that Rouga is actually the criminal Wolf. Tasuku arrives and uses Future Force to stop Shosetsu and breaks the Dark Core. Shosetsu is about to be arrested, but Gao defends him and convinces Tasuku to let Shosetsu finish the Buddyfight. Having learned his lesson, Shosetsu is now able to equip Excalibur and continues the Buddyfight against Gao. In the end, Gao wins, and Shosetsu is cleared of his crime.