Oda makes a character-defining trait (Luffy’s bottomless appetite) literally load-bearing in combat, and reveals Gear Fourth is modular (Boundman → Tankman → forward forms). A chekhov-explicit beat: the chapter announces its thesis in the title (“The Power of a Full Stomach”) and then pays it off on the same pages. Cross-link Gomu Gomu no Mi, Gear Fourth Boundman Has A Strict Time Limit And Post-Use Cost.