One year after winning the Gunpla Battle National Championships, Team Try Fighters is invited by Yajima Trading to a remote island to test the company's new battle system. Sekai and Fumina arrive on the island, only to discover that Gyanko, Shia, and Minato were also invited. Yuuma declines the offer as he is assisting Mirai on a photoshoot, only to realize that he and his teammates are on the same island. ...