luffy finds out about ace's execution

Luffy would be extremely angry and sad at the same time. He might roar out in pain and frustration.

Ace would probably be angry at first. He doesn't want Luffy getting involved with such a dangerous person like Blackbeard.

Well, first of all, Luffy is a very emotional character. When he discovers Zoro's sacrifice, he would probably go into a state of shock initially. Then, his reaction could be explosive. He might not be able to accept it right away and would try to find a way to reverse the situation. He could also start blaming himself for not being there to protect Zoro, which would further fuel his determination to become stronger and protect the rest of his crew better in the future.

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.

Well, 'Luffy and Ace: Unbreakable Ties' is a fanfiction that I really like. It focuses on their childhood memories and how those shaped their relationship as they grew up. There's also 'Ace and Luffy's Great Escape' which is full of action. It shows their cleverness in getting out of difficult situations. 'Luffy and Ace: The True Friendship' is a must - read too. It simply and effectively shows the depth of their friendship.

Their relationship started when they were young. Luffy was always chasing after Ace. At first, Ace was a bit annoyed by Luffy but gradually, they became inseparable. They had many experiences together on their small island. Later, even as Ace ventured out into the world with the Whitebeard Pirates, his connection to Luffy remained strong. He was always protective of Luffy, and this was clearly seen when he faced danger at Marineford to protect his younger brother.

Perhaps in this fanfiction, Ace, Luffy and Sabo will make Marineford a place where pirates and marines can live in harmony. They could set up some rules that both sides can abide by.

In some fanfictions, Ace's death becomes a turning point for Luffy's character development. It makes Luffy more determined and focused. Ace's legacy lives on through Luffy, and this is a common theme. Ace's values, like loyalty and protecting the weak, are also passed on to Luffy in these stories.

Well, in such a fanfiction, Ace might be worried about Luffy. Since Blackbeard is a dangerous character. He could decide to go and find Luffy to protect him. Maybe he'd start looking for Blackbeard too, to make sure he doesn't harm his little brother.