Well, in a lot of fanfictions about Luffy vs Katakuri, Luffy's growth is depicted quite vividly. His growth can be seen in his improved observation Haki. He starts to anticipate Katakuri's attacks more accurately, which is a huge step forward. He also becomes more creative with his attacks. Instead of just using his standard punches and kicks, he combines different moves and even creates new ones on the fly. This shows that he's evolving as a fighter and not just relying on his basic skills. Another aspect is his mental growth. He faces a very tough opponent in Katakuri, but he doesn't give up. His resolve gets even stronger, which is an important part of his overall growth in these fanfictions.
One of the most exciting moments could be when Luffy first uses his new gear or technique that surprises Katakuri. It shows Luffy's growth and adaptability in the fight. Another exciting part might be when Katakuri reveals a new form or power that Luffy has to quickly figure out how to counter. This back - and - forth of power display and strategic thinking keeps the 'fanfiction' action - packed.
The chapter where Luffy defeats Kaido is 1049. This battle showcased Luffy's growth and determination. It also had a ripple effect on the other characters and plot developments in the series.
For the quadruplets, their development could be based on their different relationships with the oven. One might be more cautious, another more adventurous in exploring its powers. Interaction with the OC would also shape them. If the OC has a different view on the oven's use, it can cause internal conflicts and growth among the quadruplets.
First, give each of the quadruplets a distinct personality trait. For instance, one could be the brave and impulsive one, always ready to jump into action. Another could be the calm and calculating one, thinking things through. You can also base their physical appearances on Katakuri but with some unique twists. For their backstories, think about how growing up in the world of One Piece affected them differently. Maybe one had a close encounter with a powerful enemy as a child that shaped their fear or determination.
Another theme is character adaptation. Katakuri has to adapt to new environments, cultures, and rules in crossover fanfics. This can lead to some really interesting character development. For instance, in a crossover with a post - apocalyptic world, he might have to change his moral code to survive. This theme is important as it shows different sides of Katakuri's character.