Brother Kaido, the Battlegreymon of the Grand Line

Travel through the world of pirates and eat the Tyrannosaurus rex fruit known as the most powerful ancient species at the beginning. But Rey dismissed this. Change the development direction and unlock more forms. Second gear, Greymon! Third gear, Mechanical Greymon! Gear 4, fight Greymon! When the dragon-like Digimon wearing golden armor dominates the Grand Route, when the nemesis of the dragon beast comes to the country of Wano... Even Kaido, the strongest creature, can only surrender! Garp: My iron fist can't penetrate Rey's defense? Whitebeard: Rey's Gaia energy cannon is definitely the most terrifying attack in the world! Kaido: Brother Rey is the man I admire most, but... I regard him as my elder brother, why did he kidnap my daughter? Yamato: Oguchi God? *No change! I want to be Steel Garuru and merge with Uncle Rey to become Omegamon! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.