Monkey D. Ruffy spearheads his crew’s quest for treasure on Mecha Island, sparked by discovering an elderly woman concealed within a salvaged chest. Fueled by relentless curiosity, he ignores his crew’s doubts and bargains to escort her home in exchange for a fabled golden crown—a choice emblematic of his unwavering allegiance to adventure over caution. At Mecha Island, Ruffy clashes with aggressive defenses engineered by the ruler Ratchet, who soon attempts to hijack the crew’s ingenuity to unearth the treasure himself. Ruffy tackles obstacles head-on, decoding cryptic folk lyrics and snapping stone eyes from a serpentine rock to expose hidden paths, blending impulsive action with raw effectiveness. His dynamic with Ratchet oscillates between rivalry and uneasy alliance, the latter scheming to redirect their progress for selfish ends. In skirmishes against Ratchet’s mechanized forces, Ruffy adapts swiftly, inadvertently triggering a mysterious power surge during a heated duel—a burst of energy that annihilates a prototype robot, showcasing his knack for chaotic improvisation. The climax sees Ruffy dismantling Ratchet’s colossal fortress to liberate a sentient turtle island, averting environmental collapse. He deduces the Golden Crown’s true origin as fragments from the turtle’s hatchlings, though the treasure slips away. Throughout, Ruffy’s loyalty to his crew and instinct to shield the vulnerable shine, favoring bold action over intricate plots. His leadership leans on allies’ expertise in navigation, combat, and puzzles, yet remains anchored in whimsical resolve and unyielding drive.