Lain is the strongest Blader of his generation and he seeks to prove it by defeating every Blading legend. In the heat of battle, Lain’s ferocity manifests as a fiery flare around his body. Locked in an all-consuming quest for power, he wants to see just how bright his flare can grow. Lain may be a prickly customer, but he’s got one soft spot: his hedgehog companion Harry, who never strays far from his side.

(Source: Beyblade Wiki)