Ian figures out that the stone Daigo received from his father is one of thirteen fragments of a Guardians Zyudenryu that make up the key to accessing the tenth Zyudenryu, Bragigas. Amy realizes that an acquaintance of hers, Mitsuhiko, has another one of the stones, and on his birthday he decides to give it away in a contest that the Kyoryugers and the Deboss Army participate in.