In 1986, Rook begins to target women getting married, and Yuri finds herself face to face with him when he shows up at a wedding she was attending. After his attack, she begs Jiro to let her use IXA, but he continues to refuse while Otoya creates a distraction and steals the IXA Knuckle. Meanwhile, in 2008, Wataru meets with Kengo once more, who is convinced that Kiva will be his inspiration for his music. But when they attempt to learn more about Kiva, Wataru finds himself out cold as his body is suddenly inhabited… by his father?!

As the Ladybug Fangire escapes from the Otoya-possessed Wataru, it takes Kengo and Keisuke as hostages to force Megumi into a fight as IXA. As “Otoya” tries to teach her about the resolve needed to be a warrior, she refuses to listen, and time is running out for the hostages. Meanwhile, in 1986, the actual Otoya runs into a mysterious woman at a wedding while looking for Yuri, who is revealed to be the queen of the Checkmate Four, Maya…