One Piece: Build The Strongest Beast Pirates

patreon.com/FanfictionTranslation ====================== Barbarossa Kaishu transmigrates to one piece and becomes the older brother of Kaidou of the Beasts while possessing a stronger physique talent! After the Battle of the Gods Valley, the Strongest Assistant system was activated. It can continuously improve the loyalty of the crew members while letting their Zoan-type devil fruit evolve. Sengoku: Why all of the Beasts Pirates are Mythical Zoan Devil Fruit Users?! Five Elders: Damn it! How can the Beasts Pirates be scarier than Rocks Pirates? Garp: My iron fist can't even break Kaishu's defense at all! Imu: How can there be such a terrible monster? Why even Uranus can't kill Kaishu!!