Maybe the girl and the merman fall in love. Since she saved his life, they start to spend time together. The merman shows her the underwater world, which is full of beautiful corals and strange sea animals. Their relationship might face challenges though, like the differences between their two worlds.
The merman could be a prince in the underwater kingdom. After being saved, he invites the girl to his kingdom as a honored guest. In the kingdom, the girl discovers secrets about the merman's people and helps them solve a big problem, like a curse that has been placed on their kingdom.
Well, one possibility is that the merman becomes indebted to the girl. He might then use his merman powers, like being able to communicate with sea creatures, to help the girl in some way. For example, if the girl's village is facing a shortage of fish, the merman could guide the fish back to their shores.
Well, perhaps the boy discovers the merman while he's taking a bath. Maybe the merman got there by accident, like being washed ashore and then into the bathtub through some plumbing mishap. The boy then helps the merman by hiding him from those who might want to harm or study him, and eventually figures out a way to get the merman back to the ocean.
She might fall in love with him. In many stories, such encounters often lead to romantic relationships. The merman could show the girl his underwater world, full of colorful fish and beautiful coral reefs.
They might end up enemies. For instance, if the merman has a different view on humans after being saved. Maybe he thought humans were all bad before, but now he's conflicted because this girl saved him. Or perhaps the girl accidentally reveals the merman's existence to others, which angers the merman and his kind.
A sense of wonder and magic is also a common theme. The very existence of mermen in these stories is a magical element. When the merman saves the girl, it's not just a physical rescue but also an introduction to a world full of wonder. The merman might have special powers like controlling the sea or communicating with sea creatures, and this all adds to the sense of magic in the fanfiction.
Well, one possibility could be that Sakura is about to do something harmful to Naruto out of jealousy or a misunderstanding. Hinata, who has a deep love for Naruto, senses the danger and steps in. She might use her Byakugan to detect Sakura's intentions early. Then, she could use her Gentle Fist techniques to stop Sakura without seriously hurting her. This would lead to Naruto realizing Hinata's true feelings for him more deeply and perhaps start to see her in a new light.
One possible plot development could be that Lob somehow gets lost again. Maybe he chases after a strange animal into the woods and Sandy has to go on a new adventure to find him. This would bring back the element of suspense and adventure that was in the original story.
One popular 'Merman Saves Girl' fanfiction could be 'The Merman's Rescued Love'. In this story, the merman discovers a girl drowning during a storm at sea. He uses his powerful tail to swim to her quickly and brings her to the safety of a hidden cove. There, they begin to form a special bond as the girl recovers.
Maybe Kim Possible is trying to stop a global threat that has ties to the ninja world. Naruto discovers this threat too as it endangers his village in some way. He rushes to help Kim, who is already in the thick of the battle. Naruto's ability to summon toads gives them an edge in the fight. Kim, in turn, shows Naruto some of her cool gadgets and they work together using both ninja techniques and high - tech devices to save the day.
One possible plot could be that Hizashi is in a dangerous situation during a battle against a powerful enemy. Naruto, with his strong will and powerful jutsu, arrives just in time. He might use his Rasengan or some new, self - developed technique to fend off the enemy and rescue Hizashi. Maybe Naruto has a premonition about Hizashi's danger through his connection to the Nine - Tails.
Maybe the girl is in love with a boy who is considered an enemy of the state. Their relationship is a secret, and they have to meet in hidden places. The story could be about their struggle to be together while avoiding the watchful eyes of the authorities. In 1984 - like settings, love is often a dangerous and subversive thing.