FanFiction.net is also a good place. There are many One Piece fans who post their works there. Just use the search bar and type in 'injured Luffy' and you'll be presented with a variety of stories to choose from.
One popular 'injured Luffy fan fiction' might be the ones where he gets injured during a major battle against a powerful enemy like Kaido. In these stories, his crewmates often rally around him, showing their loyalty and determination to protect him while he recovers. It adds an interesting layer of drama and character development.
In fanfic about Casey being injured in Chicago Fire, he might face various challenges. Fellow firefighters could rally around him. Maybe they'd struggle to keep the team spirit high while Casey is recovering. For example, Severide might take on extra responsibilities and feel the pressure.
I think it depends on how it's written. If the focus is more on the romance and the fact that the characters are injured soldiers is just a background setting and not used in a distasteful way, it might be okay. But if it makes light of their injuries or the military context in a bad way, then it's not ethical.
One idea could be Luffy using his intelligence to outwit powerful enemies. For example, instead of just relying on his strength in a fight against a devil fruit user with tricky abilities, he figures out their weakness through careful observation and then uses it to his advantage. He might also use his smartness to form strategic alliances with other crews or kingdoms in the One Piece world.
It could be a super intelligent pirate who has been secretly controlling events in the One Piece world. This antagonist might be several steps ahead of everyone, creating elaborate plans to take over the Grand Line. Luffy, with his newfound intelligence, has to match wits with this foe.
Fan Xian's first injury in the TV series " Celebrating the Years " was in the eighth episode. He vomited blood after fighting with the imperial guards. After that, Fan Xian was injured many times in the show, but the exact number of episodes he was injured was not mentioned in the search results provided. Therefore, the exact number of episodes in which Fan Xian was injured could not be determined.
Mo Fan's injury could be referring to the plot of the male protagonist Mo Fan getting injured in the novel " Full-time Mage " written by the Chinese online author, Luan Zuo, or it could also be a plot from other novels or works. If you can provide more context, I will try my best to answer you.
While waiting for the anime, you can also click on the link below to read the classic original work of " Full-time Expert "!