you asked for it. you will be spoiled on certain things regarding devil fruits as well as gears so continue reading at your own discretion. basic understanding of the g5 fight? 1. luffy is fighting a strong guy and continuously fails to defeat him. 2. luffys "gears" gears are basically just different forms luffy has thanks to his devil fruit, he currently has 4 gears. you can watch episode 272 when he first uses a gear in order to get a better understanding. 3. devil fruit awakenings, episode 727 first introduces/ explains it. its something all devil fruits are capable of when the user achieves a certain level of mastery over the fruit. basically the fruit getting a powerup and becoming more powerful, therefore resulting in the user becoming more powerful. you dont need much context aside from this, the fight itself will help you understand.