It could be. There are some stories based on real events that might seem like the garbage barge story, but it's hard to say for sure without more details.
I really like the fanfic about Code Geass Epyon Lamorak. It often has some really creative plot twists. For example, the way it might explore the backstories of the characters in more depth than the original series. It can give a fresh perspective on the whole Code Geass universe.
True. The garbage barge story is based on real events. There was a barge full of garbage that had a hard time finding a place to dump it, which brought attention to waste disposal issues.
One barge cable horror story could be when a barge cable snapped during a storm while the barge was loaded with heavy equipment. The cable whipped around and damaged the barge's structure, nearly causing it to capsize. It was a terrifying situation for the crew on board as they had to quickly try to secure the loose cable and deal with the instability of the barge.
The 'garbage barge' true story is about a barge full of garbage that had a lot of trouble finding a place to dump its load. It sailed around looking for a landfill that would accept it, but many places rejected it due to environmental concerns and local regulations.
There was a work barge where a mysterious illness spread among the crew. People started getting really sick with high fevers and strange rashes. They were in the middle of the ocean, far from proper medical help. It was a horror as they didn't know what was causing it and if they would survive until they could reach a port.
I recommend a novel called " Rebirth of a Shu Daughter " to you. The plot is very similar to what you described! The female protagonist had also changed her fate for revenge after her rebirth. She was framed by the scumbag and her sister and was locked in the water prison. You can read this novel. I hope you will like it!
The fanfic stands out because of the way it can expand on the characters. By focusing on Epyon and Lamorak, it can show different sides of them. Maybe it shows Epyon's pilot having to face a moral dilemma related to Lamorak that wasn't explored before. This kind of character exploration makes it different from the original anime.