A few days after the events in Tag Tamers, Ken was still sick in bed and being nursed by Ryo. Ken pointed Ryo to his computer, saying that there was something Ryo should see on it, and Ryo found a page leading to a quiz for potential participants in something called the D-1 Tournament. Curious, Ryo began answering it. With each question, it became increasingly clear that the quiz was rigged in such a way that he would be the only one to know all the answers. He then turned to Ken asking what that was about, but Ken had no idea. As no real answer was forthcoming, Ryo went on to finish up the quiz. Once one of the four Harmonious Ones (Holy Beast) was chosen, the shadow of that particular Harmonious One abducted him from Ken's room in the real world.