He transmigrates into One Piece and is reborn in Windmill Village in the East Blue! From the start, he mocks a pirate hunter: “Why are you blushing?” He barges into a bandit camp and gives the brawny men of the East Blue the finger: “I’m as strong as a Yonko. Got it?” The lackeys are so scared their legs give out on the spot. System notification: “Swagger points +2,000! Exchange for Iaido Flash!”
Wait! A Marine officer doesn’t believe him? The guy cleaves a cannon in three with Three-Sword Style right in front of him: “Hawkeye’s only good enough to polish my swords. Understand?” In that instant, Conqueror’s Haki surges from his body, and every pirate within a hundred meters drops to their knees!
The Pirate King? No. I’m going to become even more swaggering than the Pirate King: the King of Swagger!
Other people transmigrate with a System that lets them kill monsters, level up, and reach the pinnacle of life. I transmigrated with a System that lets me put on the biggest show, take the harshest beatings, and get the strongest cheats!
Bound to the “Swagger Conversion System,” where swagger points equal strength, the more outrageous the act, the more terrifying the reward. For a nobody from the East Blue, it’s both a golden finger and a death sentence.
Fail at showing off? You’re humiliated on the spot, lose all your stats, and suffer backlash from your swagger energy. Other people have teammates nearby to bail them out. I’m all alone, so if I show off, I have to back it up myself. If I mess up, no one’s coming to save me. Why? Because I’m a lone wolf. A loner never asks for help.
What if I succeed? I talk big in front of the Yonko and act like I own the place under an Admiral’s nose. The more you think I can’t do it, the more awesome I am once I pull it off! Conqueror’s Haki? I faked it! Future sight with Observation Haki? Faked it! I can even “simulate” Devil Fruit powers.