Jaime returns to Japan and gives Chrono a new Gear Chronicle card. Then, Chrono gets an idea to bring Taiyou along with his friends for a day of fun in an effort to have Taiyou smile again. Near the end of the day, Doujima, a top-ranked Dog Trainer from the United Sanctuary branch, appears to take Taiyou back. Chrono decides to fight Doujima, using the new Gear Chronicle card, Chronodragon Nextage, to win the long and difficult battle. However, Taiyou still feels the need to become stronger and returns to the branch with Doujima. Although Chrono failed to change Taiyou's perspective, he stays determined to show him how fun Vanguard can be. But unbeknownst to Chrono, Taiyou is selected to undergo a special training program...