Adopted by Gecko Moria, with no Devil Fruit and no master to teach him, he still fought his way to the pinnacle of pure swordsmanship through sheer stubborn determination!
Moria personally used the Shadow-Shadow Fruit to create sparring partners for him. By day, he honed his dual swords by cutting down shadows; by night, Haki flowed through him and seeped into his bones. Others relied on talent to train their Haki. He trained like his life depended on it!
From a down-and-out street kid in a ruined port in the West Blue to a peak fighter whose Haki could stand toe to toe with Garp, he had just one lifelong obsession:
Protect Moria and keep his loved ones safe! Anyone who laid a finger on the Gecko Pirates would be cut to pieces by his dual blades!
During the battle in Wano Country, he stood before the badly wounded Moria and unleashed Conqueror's Haki that shook heaven and earth. “Kaido, I'm your opponent!”
At the Paramount War, he stormed Marineford alone and saved Whitebeard at the last moment. On Hachinosu, he turned the tide and saved Garp from certain death, earning legendary status in a single battle!
The world may laugh at Moria for being a coward, but to him, Moria was the only person who had ever given him a home!
For Moria, he would train until his Haki reached the heavens, cut through all things with his dual blades, and face the world with no one able to stop him!