Tracing-back [from the tale of the boy who saved the world ]-to keyblade test "which does master recognition examination from this" about ten years. It is a ground of departure where three young people, Ventus, Terra, and Aqua self-train here. The sound of the bell which tells the accident in the world suddenly resounded and on that day when two keyblade wielders Terra and Aqua took the recognition examination of the keyblade master. The threat of a mystery, the existence of the darkness for which the princess of light is pressed. The tale of the origin related to a keyblade. The world and the character of a tale are introduced on the page 8 of a beginning-of-a-book color.