There was a little mermaid called Diana who used to get offshore and one day she met a human friend.
He was about her age and known for his mysterious behaviour being avoidant and shallow against his own people.
She approached him and found out about his introverted attitude and being ok keeping her secret of a mermaid form.
They had some grilled fish meal of rainbow fish where those would be captured by fishermen easily as they were known as seaweed fish who feeds on unique plants deep in the wide ocean.
when eaten it gets the person who eats them a unique and strange experience of flying and an out of body experience
they have had their meal and wined up the next morning on a deserted island.
This is a 130-words story written using 
If you want to participate in this contest please follow the guidelines on this post Day 1523: 5 Minute Freewrite: Wednesday - Prompt: seaweed