A rumor has spread amongst the children worldwide regarding the popular B-Daman matches: A select group will be allowed to participate in an upcoming secret competition, known as "Cross Fight"! <br><br>
(Source: translated and adapted from official site by Cranston) 

The anime takes place in Crest Land, where the mysterious B-Crystal has started to go berserk. The main protagonist Godai Kamon lives in the south area of Crest Land, and is an energetic boy who loves B-Daman. However, he lost his all past memories of B-Daman and his family, except for his big sister Aona who lives with him. One day, Kamon meets Galvan, a B-Daman at his local B-Daman shop, B-Junk, and he finds Galvan strangely familiar. Galvan becomes his partner, and he returns to the B-Daman battles once again.
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(Source: Anime News Network)

Natsumi Inaba