Reiner claims he's no ambitious schemer—just someone happy sailing alongside the Straw Hat crew while gathering the souls of fallen enemies. From Kuro to Arlong, from Crocodile to Shiki, his collection expands steadily, and so does the strangeness of what he commands. A horned demon with a serpent's tail? Manageable. But a Chainsaw Demon? Where did that even come from? And this 'Sukuna'—how does one even obtain such a being? When the Summit War erupts, Sengoku and the Three Admirals find themselves staring at Reiner, tranquil atop the execution scaffold. 'You're telling us these overwhelmingly powerful entities answer to him? They're corpses under his control?' 'Impossible! Isn't he merely the Straw Hat crew's handyman?' 'This is logistics?!' Reiner bristles at the question: 'If handling every conceivable task isn't logistics, then define it for me!' The narrative follows the Straw Hats' voyage with original elements woven throughout. Reiner walks the line between zealous righteousness and moral darkness, becoming neither.