Coda fanfiction is a type of fan - created story. It often takes the events of an existing work, like a movie, TV show, or book, and continues or expands on them in a new and creative way. For example, if a TV show has a big finale, a coda fanfiction might explore what happens to the characters a few years later, filling in the gaps that the original left open.
Well, a coda in fanfic is sort of like a bonus part. It can show what happens after the main events of the story, maybe giving us a glimpse into the future of the characters or tying up some loose ends. Sometimes it's just for fun or to satisfy the readers' curiosity.
First, you need to be very familiar with the original work. Read or watch it multiple times to understand the characters, the plot, and the overall world. Then, think about what aspect you want to expand or continue. It could be a character's journey or an unresolved plot point. After that, just start writing. Don't worry too much about grammar at first, just get your ideas down.
In fanfic, 'coda' often refers to an additional part or a short epilogue at the end of a story. It can be used to tie up loose ends, show a little more of the characters' future, or give a final emotional touch to the narrative.
Coda is not directly based on a true story. It's more of a fictional narrative crafted by the writer's imagination, although it might incorporate common themes and emotions that people can relate to in real life.