There might also be a rival character. This rival could be competing with Chie Hori in something, like a school competition or a talent show. Their interactions would add drama and tension to the fanfic.
One popular 'chie hori fanfic' story could be about her adventures in a magical world. Maybe she discovers she has special powers and has to use them to save her friends.
If Hori is from a particular anime or book, we would need more details about that source. Maybe it's about a high school student Hori, but still, we need to know more about the backstory of her or his parents to tell their love story.
Another key event could be when they faced some sort of obstacle in their relationship. It could be family opposition, or maybe a long - distance situation if they had to be apart for some reason. Overcoming these difficulties would be a significant part of their love story. If Hori's parents' story is a common one, they might also have a romantic proposal and a beautiful wedding as important events.
You can start by looking on popular fanfiction websites like Archive of Our Own (AO3). It has a large collection of fan - created works from various fandoms, and there's a good chance you'll find tsukiyama x chie hori fanfiction there. Just use the search function and type in the relevant tags.
A tsukiyama x chie hori fanfiction might also take a more action - packed route. Maybe they are part of a team in a post - apocalyptic world. They rely on each other's skills to survive against various threats. Tsukiyama's strength and Chie Hori's intelligence could be highlighted in such a story, and their relationship could grow out of mutual respect and the need to protect one another.
Well, in the 'big mom is luffy's mom fanfic', they might have crafted a story where Big Mom is Luffy's mom. But it goes against what we know from the official 'One Piece' story. Fanfictions like this can be really interesting as they can rewrite the story in unexpected ways. They might have some interesting plot twists and explanations within the fanfic to justify this relationship, but it's not part of the main 'One Piece' universe.
One possible plot implication could be a change in Luffy's power source. Since Big Mom has such unique and powerful abilities, Luffy might inherit or be related to some of those powers in the fanfic. Maybe his Devil Fruit ability could be related to Big Mom's in some way.