Luso seemed like a complicated guy, so Billy was surprised that something didn't snap inside him when he learned that Billy defeated him while wearing those. He was probably the strongest or one of the strongest in his state, but the world was big. Just like Svan once, he got too used to being at the top of the world he knew. In any case, if those two fight, it would be pretty interesting…
After a while, Luso joined the others in training, and since he had been watching for a while, it didn't take long for him to learn Fierce Aura. Or perhaps he noticed something when Billy was fighting even though he didn't use any skill… Nevertheless, he received his weights, and then he learned how to use them.
"Get used to them first, and you can increase their weight later," Drew said.