Chapter 664

Aboard the marine side, Tashigi struggles with reports of children vanishing inside G-5's territory, stories that newspapers quietly relabeled as deaths at sea. Smoker connects the dots: if so many youngsters really are on this island, the abductor must be here, and someone inside G-5 has been burying the truth. He refuses to let his men suspect one another, splits off a third of the unit to slip back to base, and vows to recover his stolen heart and unmask whoever is behind the scheme.

In the lab, Caesar grants his guards clearance to slaughter the Straw Hats, the samurai, and the marines, assuring them that his backer "Joker" will dress any corpse up as an ocean mishap. Across the snow, the crew listens as Brownbeard lays out the island's grim past. He describes the Worst Generation, names Basil Hawkins as the man who crippled his legs, and explains that Punk Hazard once thrived as Vegapunk's testing ground until a chemical accident four years prior poisoned everything. Caesar arrived a year later, cleansed the gas, and fitted the survivors with new limbs, while Law much later gave the leg-less men animal halves so they could walk again.

The wounded centaur, fed a so-called healing drug, begins hallucinating and choking behind a sealed door, and Caesar coldly catalogs each symptom as data. When Monet asks if the test failed, he snaps that his work never fails, insisting the catastrophe four years ago was a triumph he engineered on purpose. The marines, meanwhile, finally grasp that Caesar himself built and detonated the weapon, escaped custody, and now risks repeating the horror. The samurai is identified as Kin'emon, and Caesar is fully revealed as a Logia user of the Gasu Gasu no Mi carrying a 300,000,000 berry bounty.