Last Train Card Zero
Due to Ryutaros's stubborn pride, Den-O Gun Form is defeated by the Anthopper Brothers. But before the two Imagin deal the deathblow, Deneb runs in and fires wildly at the two as he grabs Den-O and escapes on the DenLiner. With Ryotaro gravely injured, he is sent to the hospital to heal up while Momotaros and gang swear to avenge him and the equally hurt Ryutaros. While it all occurred, Yuto fights his way into Fujishiro's office, and when Airi mentions that his last name, Fujishiro is confused and thinks that he is just the brother of the Sakurai he knows. Later, an irate Fujishiro is about to leave when he is approached by Ari, forcefully possessed by him under the Imagin's promise to fulfill his wish to have Airi. The next day, a possessed Fujishiro goes to the Milk Dipper and he kidnaps Airi. Learning of this, Yuto decides to handle this without Ryotaro's help and D-Yuto confronts A-Fujishiro. During the fight, Deneb leaves Yuto's body to fend the possessed Fujiroshiro off. But while Yuto attempts to find Airi, he is halted by Kirigiris. But M-Ryotaro arrives and takes on Kirigiris as Den-O Sword Form to settle things. By the time Yuto finds her, Airi begins to remember more about the past, and realizes Yuto is her beloved Sakurai. Before they can talk, Yuto leaves to aid Den-O against the Anthoppers, using up his final Zeronos Card to fight Ari. Den-O takes Kirigiris outside to fight, assuming Climax Form once Ryutaros is fully healed. Once the Anthoppers are destroyed, Yuto removes the card, and suddenly, both Airi and Fujishiro forget about Yuto Sakurai.