After transmigrating into a boy named Amo in Foosha Village, he finds that while everyone else awakens god-tier fruits like the Flame-Flame Fruit or the Gum-Gum Fruit, he ends up with a good-for-nothing fruit marked with red and black swirls and textured like a bath mitt. It can only strip away impurities, and cannot even pierce a tree.
Ace laughs at him, saying he is good for nothing but digging in the sand, while Luffy scoffs that it is less fun than the Gum-Gum Fruit. But Amo finds new ways to use it: he removes rust while maintaining the Red-Haired Pirates' famous sword, turns bamboo swords into keen blades, clashes head-on with the Sand-Sand Fruit using his stripping blade, and strips the resilience from the steel-hardening power of the Dice-Dice Fruit!
From a small village in the East Blue to Alabasta, he teams up with Luffy and ventures into the Grand Line with a rusty dagger, using his scrubbing ability to take on the Shichibukai, repair a giant's century-old axe, and even make Robin take notice of his bizarre power. Luo, too, is astounded by what he can do.
Who says a good-for-nothing fruit can't be a cheat ability? Watch Amo use his "everything maintenance technique" to hack his way toward the title of World's Greatest Swordsman!
