Samuel Rodrigues, better known as Jetstream Sam, is a Brazilian swordsman and mercenary whose skill with a blade borders on supernatural. Unlike most cyborg combatants in his world, Sam relies far more on natural human ability, discipline, instinct, and lethal precision than full-body augmentation. His cybernetic enhancements are limited, making his dominance in battle all the more humiliating for those who assume metal alone makes a warrior.

Charming, arrogant, playful, and brutally dangerous, Sam treats combat like a conversation worth having only with those strong enough to answer. He smiles easily, taunts beautifully, and kills with the relaxed confidence of a man who knows exactly how sharp he is.