A Fist of Divine Speed - Another Gear 4 Application Activated!

Sanji and Pudding reach Cacao Island and steal into Chocolat Town unseen. In the Mirro-World, Luffy commits to Snakeman, a Gear 4 form that quickens his strikes and lets him redirect them in midflight. Katakuri counters with devastating attacks of his own, and the two pour everything into a sprawling duel that crests in mutual finishing blows.

Recalling how Rayleigh once questioned Boundman's worth during their Rusukaina sparring, Luffy enters Snakeman and throws a punch that Katakuri dodges, only for the blow to curve back into his side. Katakuri eventually grasps that the strikes change direction and gain momentum the longer they travel, then he transforms into mochi to roll at Luffy and slams him with a flaming, spiked club called Zan Giri Mochi, leaving him stuck and pounded into a crater. Outside, Sanji halts Rabiyan just short of the island's blockade, and after scouting the overwhelming force he has Nitro bind himself and Pudding low against the bird so they skim the waves beneath enemy radar into town. The duel resumes with Luffy landing Gomu Gomu no Jet Culverin while taking Yaki Mochi, then unleashing the rapid-fire Black Mamba, which Katakuri dodges before striking back. A flashback shows Rayleigh at Shakky's bar hoping Luffy will surpass Roger, and the round climaxes as Katakuri's Zan Giri Mochi meets Luffy's enlarged King Cobra in a quake that rolls through the Mirro-World.

The adaptation adds Luffy demonstrating Gear 4 to Rayleigh before their training spar, his arms pursuing Katakuri while the Sweet Commander rolls in donut form, Sanji and Pudding's return to Cacao Island, and a scene of Rayleigh and Shakky wondering after Luffy's wellbeing. Luffy's transformation into Snakeman is depicted in full onscreen.