As Yuri cleans Otoya’s house, she worries about feeling happy when Rook is still on the loose, reaffirming her desire to defeat the powerful Fangire, but Jiro has his own revenge plans and enlists the help of Otoya to plan a four-way attack with Ramon and Riki while keeping Yuri in the dark. In 2008, Wataru reconciles with Mio, but Bishop refuses to accept these circumstances while Megumi is approached by her brother, who makes a donation to the Blue Sky Group in order to force her to return home to her family.

Having been attacked by Rook, Yuri is nearly killed before Jiro manages to intervene, landing her in the hospital. Jiro and Otoya visit her, telling her not to rush back into action, but she rushes out, falling for their diversion as they bait Rook once more. In 2008, Wataru’s relationships are increasingly strained, with Kengo upset by Wataru’s lie about his recovery, and Mio once again rejecting Wataru due to Shizuka’s meddling. With her brother still demanding Shima relieve her, Megumi goes undercover to tail a Fangire target, and when IXA and Kiva enter battle, Nago makes a shocking discovery…

In 1986, Rook enjoys his reward for beating IXA and the monsters as Yuri steals the IXA Knuckle and rushes to Rook, who steals the Knuckle and transforms into IXA! The monsters fight back, but Rook overpowers them easily as he runs wild. But when IXA overloads, Otoya and the others reveal their plan, as Yuri becomes IXA to finish off her mother’s killer. Meanwhile, in 2008, Nago discusses Wataru’s role as Kiva with Wataru, who he takes on as his pupil, further upsetting Kengo. As Bishop pushes Mio further into her role as Queen, Megumi discovers her mother’s notes on Rook and begs Nago to lend her IXA in order to exact her revenge…

With Wataru as the self-proclaimed King of the Fangires, Taiga confronts him and claims to have killed Maya. The brothers begin to fight, but Bishop appears with his army of Fangires, so the two switch targets, with the Arms Monsters arriving to back them up. Nago, with the help of Megumi, engages Bishop at the same time, struggling with his damaged eyesight, but with Megumi’s help, he triumphs. But in defeat, he succeeds in reviving the King, forcing the brothers to team up and fight the Bat Fangire just as Wataru and Otoya did 22 years earlier. The fate of humanity and the Fangires is about to be decided!