Reincarnated as Kaido, married Big Mom, and formed a dual-Emperor pirate crew.

[Kaido of the Beasts + System + Growth Flow + Villain + Domination + Brutally Killing Kozuki + Beating Up the Straw Hats + Multiple Heroines + Childbirth] This world is corrupt; it needs blood to cleanse it. Rocks attempted this feat, but the times dealt him a crushing defeat. I am Kaido, and I will not repeat Rocks' mistakes. Starting with the Fish-Fish Fruit's Azure Dragon form, which evolves into the Dragon-Dragon Fruit's Mythical Azure Dragon form, I will build the strongest pirate crew in history, with the most Mythical Zoan types, and the most cohesive crew—the Beasts Pirates! Justice and evil? Bloodline and destiny? Believe what you want! I wield a greatsword, and also...