Gear Fifth Luffy comes in like a hurricane given a body — enormous, laughing, fists the size of buildings crashing down with enough force to reshape the battlefield. His Conqueror's Haki bleeds into every blow, a pressure that makes the air itself flinch, and his rubber body drinks up anything that comes back at him, twisting and stretching to shed kinetic energy with absurd ease. He reads Gojo's movements through Tactical Precognition, anticipating the teleports, staying in the fight like a force of nature that simply refuses to be placed anywhere inconvenient. He lands hits — real ones, Armor-Piercing strikes that cut through defenses that would stop lesser fighters cold, and for a few seconds it genuinely looks like the world's most powerful pirate is dictating the terms.
Then Luffy's fists stop landing. Not because Gojo dodges — because the Infinity is already there, the automatic refraction of space between them, an unconscious theorem that decides his knuckles are always approaching and never arriving. Every amplified Gear Fifth blow decelerates into nothing at the last half-millimetre, the boundary doing mathematics faster than Haki can argue with it. Luffy has no Domain of his own, no conceptual key that turns the lock on that barrier — he can feel it, can rage against it, but the geometry doesn't care about willpower or rubber. He scales up, filling the sky, hurls city-block-wide punches that fold reality around their mass — and every single one exhausts itself at the threshold, spent, while Gojo watches with those blindfolded eyes tilted in something that might be sympathy.
Domain Expansion: Infinite Void opens, and the world behind Luffy's eyes becomes an infinite cascade of sensation — every stimulus that has ever existed flooding in simultaneously, infinite information with no off switch. His Tactical Precognition, wired to read *something*, reads everything at once and reads nothing at all. His body is still laughing on instinct, still enormous and rubber and alive, but the mind running it simply cannot issue another order. Gojo closes the distance easily through the stillness and, with precise, almost clinical Cursed Technique output, shuts him down — not a kill, just a key turned in the right lock. Luffy hits the ground, the laugh finally going quiet.
WINNER: Gojo (Peak) REASON: Infinity physically prevents Luffy from landing a finishing blow, and Infinite Void incapacitates a mind that has no conceptual defense against total sensory saturation.