One Piece : Kaido Brother

The Onigashima War ends. Kaido falls. But the true legend is just waking up. Slumbering for more than thirty years beneath Onigashima, Caesar – elder brother to Kaido, the Users of Zoan type Fish fish Fruit Model : KunPeng, the figure who idolize by Big Mom and feared by young Whitebeard – explodes back into the world. He sees his brother defeat as weakness. The Sun God Nika? Just a passing dudes. Admiral Ryokugyu? An insect. A world-shaking roar erupts from the exploding center of Onigashima, a terrifying aura pierces the clouds, shockwaves tearing apart the sky! "KAIDO! My foolish little brother! You've finally been defeated!" "After sleeping for thirty years, I, Caesar! Will destroy this boring world, Borororo!" [AU: There's a slight difference from this fic and the original works, for example, Caesar and Linlin have four sons together: Perospero, Katakuri, Daifuku, and Oven. The others were adopted by Linlin and their age is 10 years younger]