Rayleigh would be a great candidate. He's an experienced pirate and has already trained Luffy for a while. He has a lot of knowledge about the world of pirates and could give Luffy a talk about the deeper secrets of the Grand Line or how to deal with the powerful enemies that lie ahead.
It could be about Luffy having an important conversation. Maybe it's about his dreams, his crew, or some kind of revelation he has. Without reading it, it's hard to say exactly.
In Luffy fanfiction, Shanks might talk about his hopes for Luffy's future as a pirate. He could mention how he saw the potential in Luffy when he gave him the straw hat.
Well, one characteristic could be the focus on a more 'romantic' or 'intimate' relationship between Luffy and Ace, which is often not in line with the original platonic nature of their bond in the source material. However, this is a very controversial aspect as it goes against the typical portrayal of their brotherly relationship.
Character development is key. Fanfictions explore how Ace and Luffy grow under Garp's influence. Maybe Luffy becomes more disciplined in some stories, or Ace learns to be more open - hearted, all thanks to their interactions with Garp and each other.
Luffy is the protagonist of One Piece, with a head full of dreams of being the Pirate King. Ace was his beloved brother, and they had a deep connection. Ace's strength was well - known among pirates. Sabo, on the other hand, was their childhood friend who they thought was dead for a long time. But he returned. The full story involves their childhood days, their separation, Ace's tragic end, and Sabo's re - emergence. It's a story that has elements of adventure, family love, and the pursuit of freedom. Luffy's journey is greatly influenced by his relationships with Ace and Sabo, and their combined story is a big part of what makes One Piece so engaging.
One great 'Ace Sabo Luffy Fanfiction' is 'The Brothers' Bond'. It beautifully explores their relationship, showing how they support each other through various challenges. Another one is 'Sabo's Return'. It focuses on Sabo coming back into Luffy and Ace's lives and how they all readjust. There's also 'Ace and Luffy's Adventure', which takes the three on a fictional journey filled with action and heartwarming moments.
In a fanfiction, Ace's own experiences and battles could be related to Luffy's metabolism. Maybe Ace has some knowledge about a special fruit or power that could enhance Luffy's metabolism. He could share this with Luffy, leading to a new adventure where Luffy tries to obtain this thing to boost his metabolism. Also, Ace's death could have an impact on Luffy's metabolism. Luffy could go into a state of shock or extreme grief that either slows down or speeds up his metabolism in an unexpected way.
One type of fanfiction could be about Ace training Luffy in some special skills. For example, Ace might teach Luffy how to better control his Haki. This not only shows their relationship but also adds to the overall story of Luffy's growth. Another aspect could be flashbacks to their childhood, like the time they shared secrets or made promises to each other.
In some fanfictions, Ace might talk about Luffy's determination. For example, he could recall the times when Luffy faced seemingly impossible odds but still pushed forward. This shows Luffy's unwavering spirit from Ace's perspective. And it also helps readers understand the strong bond between the two brothers more fully.