In a world where the Old West meets mysticism, the people of B‑Dawolrd have played the sport of B‑Daman since ancient times. Though many are merely spectators, only a few possess the skill to become B‑Daplayers, and only one can rise to the title of B‑Dachampion. A young boy named Yamato Delgado is chosen to wield the most powerful B‑Daman, COBALT BLADE. With this formidable device, Yamato must compete in B‑Daman tournaments and confront the malevolent B‑Daplayers of the Shadow Alliance. Along his journey, he meets Gray, Bull, and Terry, who become his friends and join his B‑Daman team.
