A two-faced “Soldier Killer” planted on the same island as the real crew — a character tell loading a recurring antagonist; payoff forward, held pending.
Earliest known caller
(Unfilled.)
Why this matters
Oda front-loads Caribou’s defining contradiction — performed devotion over casual cruelty — in his very first on-page beat, a prop-tell (the praying hands) that primes the reader to distrust him long before he acts on the Straw Hats. The kind of “introduce the villain’s hypocrisy in one panel” setup that pays off as a recurring nuisance.