Kaido, the father-in-law, used monster cells to create the strongest Beast.

Luo Xing transmigrates to the world of One Piece, becomes Kaido's son-in-law, and awakens the Great Inventor System.Depending on the system level, Luo Xing can create various magical items.Inventor Level 1: Stretch underwear, plush bra...Inventor Level 2: Tiger-level Monster Cell...Inventor Level 3: Demon-level Monster Cell, Triple Gravity Training Room, Basic Time Chamber...……Inventor LV10: Flowing Blade, Time Machine, God-level Monster Cell!...When a Zoan-type character consumes a monster cell, it's equivalent to everyone becoming an Ancient Zoan, or even a Mythical Zoan!"Father-in-law Kaido, please consume this god-level monster cell!"Azure Dragon Form + God-Level Monster = World Destruction!Luo Xing is going to build the strongest Beast Pirates crew in history!