It was the tragic mistake of many from Luffy's own little corner of the universe, those who afterwards lay beaten, battered, and utterly broken, to even entertain the idea that this lean and gangly young man in the straw hat wasn't all that strong. Luffy didn't even flinch, even when the stranger he took to be among the Organization's ranks extended his hand. He kept right on staring with the same earth-drilling glare paired with a grim little smile.

"Everybody's looking for you, dummy! That's what happens when you all run around, kidnapping and hurting people," he spat right back, raising his arms outward into a more combat-ready posture. "And now you're gonna try to take this poor little girl away right in front of me? No chance!"

Without a word more of warning, Luffy fired off a lightning-fast shot of his own arm, his fist suddenly barreling forward as fast as a pistol's shot, with his lithely-muscled arm suddenly stretching out behind it. The balled-up fist careened madly towards Riku's face with enough pure power behind it to leave a deep, knuckle-shaped imprint in solid rock.