Rebirth of Luffy, This World Does Not Need the Celestial Dragons

(To make up for the plot direction + comedy + growth-oriented protagonist + smooth rhythm + promote ideological change) The loser of the previous life was reborn into Luffy. Facing this corrupt world, he was powerless in the previous life. In this life, he will use his teacher's thoughts to change the world! The nobles of the kingdom? Celestial Dragons? These are things that cannot exist! Navy? Pirates? These are relics of the times! In a world where martial arts is respected, personal force determines everything, then let yourself become the strongest in the world in this life and be the backing of the world! Every character has his own story! The main purpose of writing this novel is to make up for some of the shortcomings of the original work.